JP2010087955A - Display controller, method for controlling display device, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display controller, a method for controlling a display device and a program, enabling even a display device having an aspect ratio different from that of a picked-up image to display the image at a proper position with a proper size. <P>SOLUTION: The method for controlling the display device for outputting display data for displaying a part or all of image data to an external display device 330 includes: a step of detecting a specific region such as face detection or AF detection from the image data (#209, #211); and a step of displaying the detected specific region near the center of the display data in generating the display data (#221, #223, #227, #229 and #215). <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a display control device, a display device control method, and a program, and more particularly to a display control device that can change an image to a different aspect ratio, a display device control method, and a program.

  In recent years, images taken with an imaging device such as a digital camera have been reproduced not only with conventional prints but also with playback devices having various aspect ratios (also referred to as aspect ratios) such as televisions, landscape televisions, and personal computers. Shooting according to the aspect ratio and aspect ratio is desirable. Also, when photographing, it may be desired to change the aspect ratio depending on the composition of the subject.

In view of this, there has been proposed an imaging apparatus that can change the aspect ratio and aspect ratio. For example, Patent Document 1 discloses an electrophotographic apparatus that can change the aspect ratio of an imaging screen without changing the orientation of the main body. In this electrophotographic apparatus, the effective imaging range in the vertical direction and the horizontal direction is changed from the square image sensor by operating the vertical direction enlargement button or the horizontal direction enlargement button.
JP 2002-176581 A

However, even if shooting is performed with an aspect ratio that matches the playback device, the aspect ratios of all playback devices do not always match, so the screen may not match the captured image depending on the playback device. As a solution to this problem, for example, Patent Document 2 discloses an electronic camera in which a vertically long image is displayed by being rotated by 90 ° when displayed on an external display device.
JP 2000-295509 A

  The above-described electrophotographic apparatus disclosed in Patent Document 1 can obtain images with various aspect ratios by cutting out image data from a square imaging device, but can support display apparatuses with different aspect ratios. Can not. The electronic camera disclosed in Patent Document 2 described above has a problem that the image becomes small although the vertical and horizontal directions of the captured image can be switched.

  The present invention has been made in view of such circumstances, and a display control device and a display capable of displaying an appropriate size at an appropriate position even if the display device has an aspect ratio different from that of a captured image. An object of the present invention is to provide an apparatus control method and program.

  In order to achieve the above object, a display control apparatus according to a first invention includes a display data output unit for outputting display data for displaying part or all of image data, and a specific area in the image data. A detection unit for detecting, and a control unit for controlling to display the detected specific area near the center of the display data.

In the display control device according to a second aspect of the present invention, in the first aspect, the detection unit detects the face of the subject, detects a focus point, or detects the center of the image data.
In the display control apparatus according to a third aspect of the present invention, in the second aspect, when the control unit detects faces of a plurality of subjects, the center of gravity of the position of each face is located near the center of the display data. When a plurality of in-focus points are detected, the center of gravity of each point is controlled to be displayed near the center of the display data.

In a display control apparatus according to a fourth aspect of the present invention, in the first to third aspects of the invention, the display data is a part or all of the image data while maintaining the aspect ratio of the image data.
In the display control device according to a fifth aspect of the present invention, in the first to fourth aspects of the invention, the display data has a horizontally long shape, and when the vertically long image data is displayed, the short side of the image data is displayed. It can display according to the long side of the said display part.
In the display control device according to a sixth aspect of the present invention, in the first to fourth aspects of the invention, the display data has a vertically long shape, and when displaying the horizontally long image data, the short side of the image data is displayed. It can display according to the long side of the said display part.

  According to a seventh aspect of the present invention, there is provided a display device control method, comprising: a display device control method for outputting display data for displaying part or all of image data; Control is performed so that the detected specific area is displayed near the center of the display data.

According to an eighth aspect of the present invention, there is provided a display device control method according to the seventh aspect, wherein when the specific area in the image data is detected, the face of the subject is detected, the focus detection point is detected, or The center of the image data is detected.
In the control method of the display device according to the ninth invention, when the faces of a plurality of subjects are detected in the eighth invention, the center of gravity of the position of each face is displayed near the center of the display data. When a plurality of in-focus points are detected, control is performed so that the center of gravity of each point is displayed near the center of the display image data.
In the display device control method according to a tenth aspect of the present invention, in the seventh to ninth aspects of the invention, the display data is a part or all of the image data while maintaining the aspect ratio of the image data.
According to an eleventh aspect of the present invention, there is provided a display device control method according to any of the seventh to tenth aspects, wherein the display data has a horizontally long shape, and when the vertically long image data is displayed, the image data is short. Display with the side aligned with the long side of the display.
In a control method for a display device according to a twelfth aspect of the present invention, in the seventh to tenth aspects of the invention, the display data has a vertically long shape, and when the horizontally long image data is displayed, the image data is short. Display with the side aligned with the long side of the display.

  A program according to a thirteenth invention is a program for outputting display data for displaying part or all of image data, and detects a specific area in the image data, and near the center of the display data. Then, the computer is caused to perform control to display the detected specific area.

  According to the present invention, it is possible to provide a display control device, a display device control method, and a program that can display a display device having an aspect ratio different from that of a captured image at an appropriate position and in an appropriate size. Can do.

  Hereinafter, a preferred embodiment using a digital camera to which the present invention is applied will be described with reference to the drawings. FIG. 1 is an external view of a digital single lens reflex camera according to an embodiment of the present invention viewed from the front, and FIG. 2 is an external perspective view of the digital single lens reflex camera viewed from the back side.

  A body mount 24 for mounting the interchangeable lens 100 is provided in the approximate center of the front surface of the camera body 200 shown in FIG. A communication contact 341 for connecting to the interchangeable lens 100 and performing communication is disposed at a position slightly behind the body mount 24. Further, the inside of the camera body 200 from the body mount 24 is a mirror box, and a movable mirror 201 and the like are arranged in the mirror box.

  In addition, a release button 21 is disposed on the upper part of the left-side grip portion of the camera body 200. The release button 21 has a first release switch that is turned on when the photographer is half-pressed and a second release switch that is turned on when the photographer is fully pressed. When the first release switch (hereinafter referred to as 1R) is turned on, the camera performs photographing operations such as focus detection, focusing of the photographing lens, and photometry of the subject brightness, and the second release switch (hereinafter referred to as 2R) is turned on. Based on the output of the image sensor 221 (see FIG. 3), an exposure operation for capturing image data of the subject image is executed.

  A front dial 22 is disposed on the front left grip portion of the camera body 200. The front dial 22 is rotatable in a clockwise direction and a counterclockwise direction, and its rotation direction and rotation amount are detected and output.

  A built-in flash 50 for irradiating the subject with auxiliary light is housed in the upper part of the camera body 200. When the built-in flash strobe 50 is in a pop-up state, the built-in flash strobe 50 is in a use state, and its light emitting portion is positioned toward the subject.

  A control panel 40 is disposed on the upper surface of the camera body 200. The control panel 40 is a display device such as a liquid crystal display, and displays shooting information such as an aperture value and a shutter speed value for shooting.

  As shown in FIG. 2, a rear dial 23 is arranged on the upper right side of the back surface of the camera body 200. Similarly to the front dial 22, the rear dial 23 is also rotatable in the clockwise direction and the counterclockwise direction, and the rotation direction and the rotation amount are detected and output.

  A live view display button (hereinafter referred to as LV display button) 31 is disposed below the rear dial 23. Live view display refers to displaying a subject image on a display device such as a liquid crystal monitor for subject image observation based on image data acquired by an image sensor. By operating this LV display button 31, the live view display mode is set, and when it is operated again, the live view display mode is canceled.

  A cross button 32 is disposed below the LV display button 31. This cross button 32 is composed of four buttons, an upper cross button, a lower cross button, a right cross button, and a left cross button. . An OK button 33 is disposed substantially at the center of the four cross buttons 32. The OK button 33 is an operation member for determining the item selected by the cross button 32.

  A power switch 34 is disposed below the cross button 32. The power switch 34 is an operation member for controlling execution of the camera operation of the camera. That is, the camera according to the present embodiment performs various operations when the power switch 34 is on, and does not perform camera operations when the power switch 34 is off.

  An eyepiece unit 38 is provided at the upper portion of the center of the back surface of the camera body 200, and an eyepiece lens 209 is disposed therein. The camera body 200 is a single-lens reflex camera. A finder optical system (see FIG. 3) such as a movable mirror 201 and a pentaprism 207 is arranged inside, and a subject light flux that has passed through the finder optical system is used as an eyepiece. 209. The photographer can optically observe the subject image through the eyepiece lens 209.

  A rear liquid crystal monitor (hereinafter referred to as rear LCD) 39 is disposed below the eyepiece 38. The rear LCD 39 is a display device for performing live view display, reproducing and displaying recorded subject images, and displaying shooting information and menus. Any liquid crystal display can be used as long as it can perform these displays. Further, in the present embodiment, the camera body 200 is disposed on the back surface, but is not limited to the back surface as long as the photographer can observe it.

  A menu button 35 is disposed below the rear LCD 39 and on the left side of the power switch 34. The menu button 35 is an operation member for setting and canceling the menu mode. The menu mode is a mode for performing various modes and other settings of the camera. When the menu mode is set, a menu is displayed on the rear LCD 39. The photographer selects a desired mode or the like from the menu display with the cross button 32 and confirms with the OK button 33.

  A playback button 36 is arranged on the left side of the menu button 35. The playback button 36 is an operation member that reads out image data recorded on a recording medium or the like and instructs a playback mode in which a subject image is played back and displayed on the rear LCD 39 based on the image data.

  On the left side of the playback button 36, a vertical / horizontal button 37 is arranged. The vertical / horizontal button 37 is an operation member for selecting either a vertical image or a horizontal image. As will be described later, the image pickup device 221 of the camera according to the present embodiment has a substantially square shape, and image data of a vertically long image or a horizontally long image is selected and displayed from image data output by the image pickup device. And recording on a recording medium.

  Next, an electric circuit of the digital single-lens reflex camera according to the present embodiment will be described with reference to a block diagram shown in FIG. This digital single-lens reflex camera includes an interchangeable lens 100 and a camera body 200. In the present embodiment, the interchangeable lens 100 and the camera body 200 are configured separately and are electrically connected by the communication contact 341. However, the interchangeable lens 100 and the camera body 200 can be configured integrally. .

  Inside the interchangeable lens 100, a photographing optical system 101 for focus adjustment and focal length adjustment, and a diaphragm 103 for adjusting the aperture amount are arranged. The photographing optical system 101 is driven by an optical system driving mechanism 107, and the diaphragm 103 is driven by an aperture driving mechanism 109. The focus position (focus position) of the photographing optical system 101 driven by the optical system drive mechanism 107 is detected by the focus position detection mechanism 105, and the focal length of the optical system 101 is detected by the zoom position detection mechanism 106.

  The optical system drive mechanism 107, the aperture drive mechanism 109, the focus position detection mechanism 105, and the zoom position detection mechanism 106 are each connected to a lens CPU 111, and the lens CPU 111 is connected to the camera body 200 via a communication contact 341. ing.

  A lens ROM 113 and a lens RAM 115 are connected to the lens CPU 111. The lens ROM 113 is an electrically rewritable nonvolatile memory, and stores a program for causing the lens CPU 111 to execute, unique information of the interchangeable lens 100, and the like. The lens RAM 115 is an electrically rewritable volatile memory, and is a temporary storage area used for executing the above-described program.

  The lens CPU 111 controls the interchangeable lens 100. The lens CPU 111 controls the optical system driving mechanism 107 to perform focusing and zoom driving, and controls the diaphragm driving mechanism 109 to perform aperture value control. Further, the lens CPU 111 transmits the focal length and focal position information detected by the focus position detection mechanism 105 and the zoom position detection mechanism 106 to the camera body 200.

  In the camera body 200, a position tilted by 45 degrees with respect to the optical axis of the lens (the lowered position, the subject image observation position) in order to reflect the subject image to the observation optical system, and a subject image to be guided to the image sensor 221. A movable mirror 201 that can be rotated between the jumped up position (the raised position and the retracted position) is provided.

  Above the movable mirror 201, a focusing screen 204 for forming a subject image is disposed. Above the focusing screen 204, an entire liquid crystal plate (hereinafter referred to as an entire LCD) 205 is disposed. . The entire LCD 205 can partially control transmission and light shielding, and can guide the subject image to the finder optical system for any part of the subject image formed on the focusing screen 204.

  Above the entire LCD 205, a pentaprism 207 for horizontally inverting the subject image is arranged. An in-finder display device 206 is arranged along the front reflective surface of the pentaprism 207. The in-viewfinder display device 206 is composed of a liquid crystal display device or the like, and displays a field-of-view display, photographing information and the like superimposed on the optical viewfinder image, as will be described later. The in-finder display device 206 is connected to the in-finder display driving circuit 295, and is driven and controlled thereby.

  An eyepiece lens 209 for observing a subject image is disposed on the emission side (right side in FIG. 3) of the pentaprism 207, and a photometric sensor 211 is disposed on the side of the pentaprism 207 so as not to interfere with the observation of the subject image. The photometric sensor 211 is connected to a photometric processing circuit 212, and the output of the photometric sensor 211 is subjected to processing such as amplification and analog-digital conversion by the photometric processing circuit 212.

  Near the center of the movable mirror 201 described above is a half mirror, and on the back surface of the movable mirror 201, a sub mirror 203 for reflecting subject light transmitted through the half mirror portion to the lower part of the camera body 200 is provided. ing. The sub mirror 203 is rotatable with respect to the movable mirror 201. When the movable mirror 201 is flipped up (the position indicated by a broken line in FIG. 3), the sub mirror 203 is rotated to a position that covers the half mirror portion. When in the observation position (lowering position), it is in an open position with respect to the movable mirror 201 as shown.

  This movable mirror 201 is driven by a mirror drive mechanism 239. A phase difference AF sensor 241 is disposed below the sub mirror 203, and an output of the phase difference AF sensor 241 is connected to the phase difference AF processing circuit 243. The phase difference AF sensor 241 is a known phase difference that separates the peripheral luminous flux of the photographing optical system 101 into two luminous fluxes in order to measure the defocus amount of the subject image formed by the photographing optical system 101. It consists of an AF optical system and a pair of sensors. Further, the phase difference AF sensor 241 can detect the focus at each of a plurality of points in the photographing screen.

  A focal plane type shutter 213 for controlling the exposure time is disposed behind the movable mirror 201, and this shutter 213 is driven and controlled by a shutter drive mechanism 237. An imaging element 221 is disposed behind the shutter 213 and photoelectrically converts a subject image formed by the photographing optical system 101 into an electrical signal. Needless to say, a two-dimensional solid-state image sensor such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor) can be used as the image sensor 221.

  The image sensor 221 is connected to the image sensor drive circuit 223, and the image sensor drive circuit 223 reads an image signal from the image sensor 221. The image sensor driving circuit 223 is connected to a preprocessing circuit 225. The preprocessing circuit 225 performs preprocessing for image processing such as pixel thinning processing for live view display and clipping processing for enlarged display. Do.

  A dust filter 215 and an infrared cut filter / low pass filter 217 are disposed between the shutter 213 and the image sensor 221. A piezoelectric element is fixed around the dustproof filter 215, and this piezoelectric element is vibrated with ultrasonic waves by a dustproof filter driving circuit 235. The dust adhering to the dust filter 215 is removed by the vibration wave generated in the piezoelectric element.

  The infrared cut filter / low pass filter 217 is an optical filter for removing the infrared light component and the high frequency component from the subject light flux. The dust-proof filter 215, the infrared cut filter / low-pass filter 217, and the image sensor 221 are integrally formed in an airtight manner so that dust and the like do not enter. The integrated image sensor 221 and the like can be moved by the shift mechanism 233 along the X-axis direction and the Y-axis direction on the image pickup surface of the image sensor 221, respectively.

  The camera shake sensor 229 is an angular acceleration sensor or the like that detects vibration caused by camera shake or the like applied to the camera body 200, and this output is connected to the camera shake correction circuit 230. The camera shake correction circuit 230 generates a camera shake correction signal for removing vibrations such as camera shake, and the output of the camera shake correction circuit 230 is connected to the shift mechanism drive circuit 231.

  The shift mechanism drive circuit 231 inputs a camera shake correction signal, and drives the shift mechanism 233 based on this signal. By this shift mechanism 233, the image sensor 221 and the like are moved so as to cancel vibrations such as camera shake applied to the camera body 200, thereby performing vibration isolation.

  The tilt sensor 227 detects angular acceleration about three axes and outputs a value corresponding to the tilt of the camera body 200. The inclination detection circuit 228 is connected to the inclination sensor 227, and obtains the inclination state from the steady state value of the inclination sensor 227 and the acceleration from the change amount of the inclination sensor 227, and outputs these values.

  The light source sensor 244 is a sensor for detecting a light source of ambient light of a subject such as a fluorescent lamp or sunlight. The light source processing circuit 245 is connected to the light source sensor 244 and outputs light source data corresponding to the light source. The illuminance sensor 246 is a sensor for measuring the illuminance on the camera 200. The illuminance processing circuit 247 is connected to the illuminance sensor 246 and outputs illuminance data corresponding to the illuminance.

  The remote control reception sensor 248 is an infrared sensor for receiving a remote control command by infrared rays or the like from a remote control device (not shown). The remote control reception processing circuit 249 is connected to the remote control reception sensor 248, inputs a signal from this sensor, and outputs a remote control signal.

The pre-processing circuit 225 described above is an ASIC (Application Specific
Integrated Circuit is connected to a data bus 252 in an application-specific integrated circuit) 250, and is connected to each circuit in the ASIC 250 via the data bus 252. The preprocessing circuit 225 is also connected to the contrast AF circuit 253 and the AE circuit 255.

  The contrast AF circuit 253 extracts a high frequency component based on the image signal output from the preprocessing circuit 225, and outputs contrast information based on the high frequency component to the body CPU 251. The AE circuit 255 outputs photometric information corresponding to the subject brightness to the body CPU 251 based on the image signal output from the preprocessing circuit 225.

  The body CPU 251 connected to the data bus 252, the contrast AF circuit 253, and the AE circuit 255 controls the operation of the digital single-lens reflex camera according to the program stored in the flash memory 277.

  In addition to the body CPU 251, the data bus 252 includes an image processing circuit 257, a compression / decompression circuit 259, a video signal output circuit 261, a switch detection circuit 268, an input / output circuit 271, a communication circuit 273, a flash memory control circuit 275, and an SDRAM control circuit. 279, a recording medium control circuit 283, and a dial detection circuit 289 are connected.

  The image processing circuit 257 performs various types of image processing such as digital amplification (digital gain adjustment processing) of digital image data, color correction, gamma (γ) correction, contrast correction, and live view display image generation. The compression / decompression circuit 259 is a circuit for compressing the image data temporarily stored in the SDRAM 281 by a compression method such as JPEG or TIFF and decompressing the data for display. Note that image compression is not limited to JPEG or TIFF, and other compression methods can be applied. Further, the image processing circuit 257 detects whether or not a person's face is included in the image, and if so, detects the position of the face. Face detection is performed by a known pattern matching method or the like.

  The video signal output circuit 261 is connected to the rear LCD 39 via the LCD driving circuit 263, and can be connected to the external display device 330 via the contact 330a. The video signal output circuit 261 is a circuit for converting image data stored in the SDRAM 281, the recording medium A 285, and the recording medium B 287 into a video signal for display on the rear LCD 39 or the like. As shown in FIG. 2, the rear LCD 39 is disposed on the rear surface of the camera body 200. However, the rear LCD 39 is not limited to the rear surface and may be another display device as long as the photographer can observe.

  Various switches including a 1R switch for detecting the first stroke (half press) of the shutter release button 21, a 2R switch for detecting the second stroke (full press), and a live view display switch that is turned on by operating the live view display button 31. 269 is connected to the data bus 252 via the switch detection circuit 268. Other various switches 269 include a menu switch linked to the menu button 35, a playback switch linked to the playback button 36, a vertical / horizontal switch linked to the vertical / horizontal button 37, and a power switch 34. Various interlocking switches are included.

  The dust filter driving circuit 235, the shutter driving mechanism 237, the phase difference AF processing circuit 243, the mirror driving mechanism 239, the light source processing circuit 245, the illuminance processing circuit 247, the remote control reception processing circuit 249, the tilt detection circuit 228, and the shift mechanism driving circuit described above. The input / output circuit 271 connected to the photometric processing circuit 212 controls input / output of data to / from each circuit such as the body CPU 251 via the data bus 252. The input / output circuit 271 is also connected to an LCD orientation detection circuit 265, a charging circuit 301, and a flash light emission circuit 303, which will be described later.

  A communication circuit 273 connected to the lens CPU 111 via a communication contact 341 is connected to the data bus 252 and exchanges data and communicates control commands with the body CPU 251 and the like.

  The flash memory control circuit 275 is connected to a flash memory 277. The flash memory 277 stores a program for controlling the operation of the digital single-lens reflex camera. As described above, the body CPU 251 The digital single-lens reflex camera is controlled according to the program stored in the flash memory 277. Note that the flash memory 277 is an electrically rewritable nonvolatile memory.

  The SDRAM 281 is connected to the data bus 252 via the SDRAM control circuit 279, and the SDRAM 281 temporarily stores the image data processed by the image processing circuit 257 or the image data compressed by the compression / decompression circuit 259. This is a buffer memory.

  A recording medium control circuit 283 connected to the data bus 252 is connected to the recording medium A 285 and the recording medium B 287, and controls recording of image data and the like on these recording media A 285 and B 287 and reading of the image data and the like.

  Recording medium A285 and recording medium B287 are loaded with any of rewritable recording media such as xD Picture Card (registered trademark), CompactFlash (registered trademark), SD Memory Card (registered trademark) or Memory Stick (registered trademark). It is configured so that it can be attached to and detached from the camera body 200. In addition, the hard disk may be configured to be connectable via a communication contact. Note that the recording media A285 and B287 are the same type of recording media, and combinations such as combinations with different storage capacities and combinations of different types of recording media are free.

  The dial detection circuit 289 is connected to the front dial 22 and the rear dial 23, respectively, and detects the rotation direction and the rotation amount of each dial.

  In the camera main body 200, a power supply circuit 291 for supplying power to each circuit and each mechanism in the main body is provided. A built-in battery 292 and an external power supply 293 can be connected to the power supply circuit 291.

  The LCD orientation detection circuit 265 detects the orientation of the rear LCD 39. That is, the rear LCD 39 can change its orientation to a vertical position or a horizontal position, detects this orientation, and transmits it to the body CPU 251 via the input / output circuit 271.

  A control panel drive circuit 297 is connected to the control panel 40 described above, and the control panel drive circuit 297 is connected to the body CPU 251. The body CPU 251 displays shooting information and the like on the control panel 40 via the control panel drive circuit 297.

  The built-in flash 50 disposed in the camera body 200 includes a charging circuit 301, a flash light emitting circuit 303, a light emitting tube 305, and the like. The charging circuit 301 receives power supply from the battery 292, the external power supply 293 or the like, boosts the voltage, and charges it. The flash light emission circuit 303 performs light emission control such as applying a voltage boosted by the charging circuit 301 to the light emission tube 305 at a predetermined timing.

  The external flash 310 is an external flash device, and is connected to the camera body 200 via the contacts 310a and 310b. In the external flash 310, a flash CPU 311, a charging circuit 313, a flash light emission circuit 315, an arc tube 317, a reflector 318, and a zoom drive circuit 319 are disposed.

  The flash CPU 311 controls the external flash 310, and communicates with the body CPU 251 via the contact 310b and the communication circuit 273. The charging circuit 313 boosts the voltage of the power supply battery loaded in the external flash 310 and charges it. The flash light emission circuit 315 emits light in response to a light emission command received via the body CPU 251 and the contact 310a. The zoom drive circuit 319 drives and controls the distance between the arc tube 317 and the reflection shade 318 according to the focal length of the photographing optical system 101, and controls the irradiation angle according to the focal length of the photographing optical system 101 and the like. .

  The external device 320 is a device such as a personal computer (PC), and communicates with the body CPU 251 via the contact 320a and the communication circuit 273. The external display device 330 is a display device such as a television and is connected to the video signal output circuit 261 through the contact 330a. A display device drive circuit 331 and a display device 333 are disposed inside the external display device 330. Based on the video signal from the video signal output circuit 261, the display device driving circuit 331 displays a recorded image or the like on the display device 333.

  Next, the aspect and aspect ratio in this embodiment will be described with reference to FIG. The imaging surface of the image sensor 221 has a substantially square shape, and an image is obtained in the image sensor 221 and in the image circle 120. The aspect ratio at this time is called the aspect ratio. In the present embodiment, four aspect ratios of 4: 3 landscape, 4: 3 portrait, 16: 9 landscape, and 16: 9 portrait are employed. Of course, a different aspect ratio may be adopted. The aspect ratio described here can be changed by a setting change subroutine in FIG. Based on the set aspect ratio, valid image data (image data output area) is selected by the preprocessing circuit 225 and the image processing circuit 257 from the image data output from the image sensor driving circuit 223. The

  Next, the operation in this embodiment will be described with reference to the flowcharts shown in FIGS.

  FIG. 5 shows a power-on reset operation by the body CPU 251 on the camera body 200 side. When the battery 292 is loaded in the camera body 200 or the external power source 293 is connected, this flow starts. First, it is determined whether the power switch 34 of the camera body 200 is on (# 1). If the result of determination is that the power switch 34 is off, the sleep state, which is a low power consumption state, is entered (# 3).

  In this sleep state, interrupt processing is performed only when the power switch 34 is turned on, and processing for power-on is performed in step # 5 and subsequent steps. Until the power switch 34 is turned on, operations other than the power switch interrupt processing are stopped to prevent the power battery from being consumed.

  In step # 1, when the power switch 34 is turned on, or when the sleep state is canceled in step # 3, power supply is started (# 5). Next, a dust removing operation is performed in the dust filter 215 (# 7). In this step, a driving voltage is applied from the dust filter driving circuit 235 to the piezoelectric element fixed to the dust filter 215, and dust and the like are removed by ultrasonic vibration waves.

  Next, if there is information such as the shooting mode set by the front dial 22 or the rear dial 23, ISO sensitivity, manually set shutter speed or aperture value, the shooting mode and shooting conditions are read (#). 9). At this time, the lens CPU 111 also reads lens information such as the aperture stop and focal length information of the interchangeable lens 100 via the communication circuit 273.

  Once the shooting mode or the like has been read, it is next determined whether or not live view is being performed (# 11). The live view display of the digital single lens reflex camera according to the present embodiment is set to the live view display mode when the LV display button 31 is operated once, and the live view display mode is canceled when the LV display button 31 is operated again.

  If the result of determination in step # 11 is not live view display mode, that is, in the case of optical viewfinder display mode, finder photometry (F metering) and exposure amount calculation are performed (# 13). When not in the live view display mode, the movable mirror 201 is in the lowered state, and reflects the subject light flux that has passed through the photographing optical system 101 to the finder optical system such as the pentaprism 207. Therefore, the subject luminous flux enters the photometric element 211, and photometry can be performed.

  When metering is performed by finder metering, an exposure value such as an aperture value and a shutter speed for obtaining proper exposure is calculated based on the subject luminance obtained at this time. The exposure amount is calculated according to the shooting mode and shooting conditions set in step # 9.

  Once the exposure amount is calculated, the finder display is then performed (# 15). The viewfinder display is performed by the in-finder display device 206, and the shooting range according to the set aspect ratio and aspect ratio, and the shooting conditions such as the aperture value and the shutter speed, which are calculated or set manually, are displayed. The aperture value and shutter speed value based on the calculated exposure amount, or these manually set values are also displayed on the control panel 40. Details of this finder display subroutine will be described later with reference to FIG.

  Subsequently, the live view display is turned off (# 17). When the live view display mode is switched to the optical viewfinder display mode, the live view display is turned off here. If the live view display mode is canceled and the optical viewfinder display is repeated, the live view display is turned off, and this step is skipped.

  If the result of determination in step 11 is that live view display mode has been set, the movable mirror 201 is retracted (# 31), and the shutter 213 is opened (# 33). In the live view display mode, the subject image is displayed on the rear LCD 39 based on the image data from the image sensor 221, so the movable mirror 201 is retracted and the shutter 213 so that the subject image is formed on the image sensor 221. Is released. Note that steps # 31 and # 33 are skipped after the live view display is started.

  Subsequently, imager photometry (I photometry) and exposure amount calculation are performed (# 35). When the live view display mode is entered, the movable mirror 201 is retracted from the optical path of the photographing optical system 101, and the subject luminous flux does not enter the photometric element 211. Therefore, the subject brightness is measured by the AE circuit 255 based on the image data from the image sensor 221.

  Based on the measured subject brightness, an exposure amount such as an aperture value and a shutter speed for obtaining proper exposure is calculated. Note that the exposure amount is calculated according to the shooting mode and shooting conditions set in step # 9, as in step # 13. Further, the aperture value and shutter speed value based on the exposure amount calculated here, or these manually set values are displayed on the rear LCD 39 and the control panel 40.

  Subsequently, live view display is performed (# 37). In the live view display, image processing such as thinning out the number of pixels is performed by the pre-processing circuit 225 and the image processing circuit 257 based on the image data from the image sensor 221, and the subject image is displayed on the rear LCD 39 as a moving image. Every time image data is read from the image sensor 221, the subject image is updated.

  Once live view display is performed, the viewfinder display is turned off (# 39). When the optical viewfinder display mode is switched to the live view display mode, the viewfinder display is turned off here. Note that when the mode is switched to the live view display mode and the live view display is repeatedly performed, the finder display is turned off, and this step is skipped.

  When the live view display in step # 17 is turned off or the viewfinder display in step # 39 is turned off, it is determined whether or not an operation with the operation member has been performed (# 19). In this step, it is determined by the switch detection circuit 268 whether any one of the 1R switch, the setting switch (menu switch), the reproduction switch, and the power switch has been operated.

  If the result of determination in step # 19 is that there has been no operation, processing returns to step # 11 and the aforementioned operation is executed. On the other hand, if the result of determination is that operation has been performed, it is next determined whether or not the release button 21 has been half-pressed, that is, whether or not the 1R switch is on (# 21).

  If the result of determination in step # 21 is that the 1R switch is on, a shooting operation subroutine for shooting preparation and shooting is executed (# 41). Details of this subroutine will be described later with reference to FIG.

  If the result of determination in step # 21 is that the 1R switch is not on, or if a shooting operation has been executed in step # 41, it is next determined whether or not the setting switch is on. In this step, it is determined whether or not the menu button (setting button) 35 is operated and the menu mode (setting mode) is set.

  If the result of determination in step # 23 is menu mode (setting mode), the setting is changed (# 43). In this setting change subroutine, various modes such as an aspect change mode enlarged display mode, a cut-out mode, and a face detection mode can be set, and various processes are performed in accordance with the set menu. Details of this subroutine will be described later with reference to FIG.

  If the result of determination in step # 23 is that the setting switch is not on, or if the setting change subroutine in step # 43 is executed, it is next determined whether or not the regeneration switch is on (# 45). If the result of this determination is that the regeneration switch is on, regeneration operation is executed (# 45). In the reproduction operation, the image data recorded on the recording medium A285 or the recording medium B287 is read and reproduced and displayed on the rear LCD 39 or the external display device 330. Details of the subroutine of the reproduction operation will be described later with reference to FIG.

  If the result of determination in step # 25 is that the regeneration switch is not on, or if the regeneration operation subroutine in step # 45 is executed, it is next determined whether or not the power switch 34 is on (# 27). . If the result of this determination is that the power switch 34 is on, processing returns to step # 11 and the aforementioned operation is executed.

  On the other hand, if the result of determination in step # 27 is that the power switch is not on, power supply is stopped (# 29), processing returns to step # 3, and the aforementioned sleep state is entered.

  Next, the shooting operation subroutine in step # 41 will be described with reference to the flowchart shown in FIG.

  When the shooting operation subroutine is entered, it is first determined whether or not the live view display mode is set as in step # 11 (# 51). If the result of this determination is not live view display mode, a phase difference AF subroutine is executed (# 53). In this phase difference AF subroutine, the focal shift direction and the focal shift amount of the photographic optical system 101 are detected based on a known phase difference method using two light beams that have passed through the periphery of the photographic optical system 101. Then, the photographing optical system 101 is driven to the in-focus position using the detected defocus direction and defocus amount.

  When phase difference AF is completed, finder photometry and exposure amount calculation are then performed in the same manner as in step # 13 (# 55). The aperture value and shutter speed value based on the exposure amount calculated here, or these manually set values are displayed on the in-finder display device 206 and the control panel 40.

  If the result of determination in step # 51 is live view display mode, the imager AF subroutine is executed (# 57). In the live view display mode, the movable mirror 201 is in the retracted position from the optical path of the photographing optical system 101, and distance measurement by phase difference AF cannot be performed. Therefore, imager AF is performed based on the image data from the image sensor 221. In this imager AF subroutine, drive control of the imaging optical system 101 is performed so that the high-frequency component of the image data output from the contrast AF circuit 253 has a peak value.

  Once imager AF has been carried out, imager photometry and exposure amount calculation are carried out in the same manner as in step # 35 (# 59). The aperture value and shutter speed value based on the calculated exposure amount, or these manually set values are displayed on the rear LCD 39 and the control panel 40.

  After performing finder photometry and exposure calculation in step # 55 or imager photometry in step # 59, it is next determined whether or not the release button 21 has been fully pressed, that is, whether or not the 2R switch is on (#). 61). If the result of this determination is that the 2R switch is not on, it is determined whether or not the 1R switch is on (# 63).

  If the result of determination in step # 63 is that the 1R switch is not on, the photographer's finger has been released from the release button 21, so the shooting operation subroutine is terminated, and the flow returns to the original flow. On the other hand, if the result of determination in step # 63 is that the 1R switch is on, since at least the photographer's finger is on the release button 21, the process returns to step # 61, and this step and step # 63 are performed. It will be in the standby state judged alternately.

  If the result of determination in step # 61 is that the 2R switch is on, the release button 21 is fully pressed and the operation proceeds to exposure. First, as in steps # 11 and # 51, it is determined whether or not the live view display mode is set (# 65). If the result of this determination is not live view display mode, the movable mirror 201 is retracted (# 67). In the live view display mode, that is, in the optical viewfinder display mode, the movable mirror 201 is in the lowered position, and therefore the movable mirror 201 is retracted to guide the subject light flux to the image sensor 221.

  On the other hand, if the result of determination in step # 65 is live view display mode, the shutter 213 is closed (# 91). In the live view display mode, the movable mirror 201 is in the retracted position, and the shutter 213 remains open. Since the shutter 213 needs to be charged when performing the exposure operation, the shutter 213 is temporarily closed.

  If the movable mirror is retracted in step # 67 or the shutter is closed in step # 91, the diaphragm 103 is then moved down (# 69). In this step, a stop instruction is given to the lens CPU 111 so that the aperture value obtained based on the exposure amount calculation or the manually set aperture value is obtained.

  Subsequently, an exposure operation is performed (# 71). In this step, the front curtain of the shutter 213 is driven and charge accumulation is started in the image sensor 221. When a predetermined time elapses, the rear curtain of the shutter 213 is caused to travel and the charge accumulation in the image sensor 221 is terminated.

  When the exposure operation is completed, the aperture 103 is then opened (# 73). That is, the body CPU 251 transmits an instruction to the lens CPU 111 so that the aperture 103 becomes the full aperture value.

  When the aperture is opened, it is next determined whether or not the live view display mode is set (# 75), as in steps # 11, # 51, and # 65. If the result of this determination is not live view display mode, the movable mirror 201 is returned (# 77). That is, since the movable mirror 201 has been retracted from the optical path of the photographing optical system 101 in step # 67, it is lowered so as to be inserted into the optical path.

  On the other hand, if the result of determination in step # 75 is live view display mode, the shutter 213 is opened (# 93). That is, in order to restart the live view display, the front curtain of the shutter 213 is run and the shutter is opened in order to guide the subject light flux from the photographing optical system 101 to the image sensor 221.

  When the movable mirror is returned at step # 77 or the shutter is opened at step # 93, the image is read out (# 79). In this step, an image signal is read from the image sensor 221 by the image sensor drive circuit 223.

  Subsequently, image processing is performed (# 81). That is, the image signal read from the image sensor 221 is subjected to various image processing by the preprocessing circuit 225, the image processing circuit 257, the compression / decompression circuit 259, and the like. Note that the image data in the image data output area based on the set aspect ratio is selected by the pre-processing circuit 225, the image processing circuit 257, and the like by the setting change subroutine (see FIG. 7), and image processing is performed.

  Once image processing has been performed, image recording is next performed (# 83). In the image recording, the image data in the image data output area subjected to the image processing is recorded on the recording medium A 285 or the recording medium B 287 by the recording medium control circuit 283. During image recording, the position of the AF point focused during AF is recorded together with the image data. In addition, when AF is performed in the face detection mode, face information such as the presence of a face and the position of the face is recorded together with the image recording. When this image recording is completed, the original flow is restored.

  Next, the setting change subroutine in step # 43 will be described with reference to the flowchart shown in FIG. Various settings can be changed in the menu mode, but the flowchart shown in FIG. 7A shows only a part thereof.

  That is, the flow shown in FIG. 7A shows a case where the mode for changing the aspect ratio is selected by operating the operation members such as the cross button 32 and the vertical / horizontal button 37 in the upper setting change flow.

  If the setting change flow shown in FIG. 7A is entered, it is first determined whether or not an aspect change operation has been performed (# 101). This aspect change operation is performed by selecting the aspect change by operating the cross button 32 on the menu screen of the rear LCD 39 and determining the selected aspect ratio by the OK button 33.

  If the result of determination in step # 101 is that the aspect setting has been changed, the aspect setting is changed (# 103). That is, each time the right cross button of the cross buttons 32 is operated, the aspect ratio is sequentially changed to 4: 3, 3: 2, 16: 9 as shown in FIG. 7B. When the left cross button is operated, the order is changed in the reverse order.

  When the aspect setting change in step # 103 is completed, or if the result of determination in step # 101 is that an aspect change operation has not been performed, it is next determined whether or not a vertical / horizontal position change operation has been performed (#). 105). In this step, it is determined whether or not the vertical / horizontal button 37 has been operated.

  If the result of determination in step # 105 is that a vertical / horizontal position change operation has been performed, vertical / horizontal setting change is performed (# 107). Here, as shown in FIG. 7B, when 4: 3 landscape is set, the setting is changed to 3: 4 portrait. If 3: 2 landscape is set, the setting is changed to 2: 3 portrait, and if it is set to 16: 9 landscape, the setting is changed to 9:16 portrait.

  If the setting is changed in step # 107 or if the result of determination in step # 105 is that the vertical / horizontal position change operation has not been performed, the process returns to the original flow.

  Thus, in this embodiment, the aspect ratio and the vertical / horizontal position can be changed. When the vertical / horizontal position and aspect are changed, the preprocessing circuit 225 and the image processing circuit 257 change the effective range of the image data read from the image sensor 221 according to this setting. For this reason, it is possible to shoot on a screen corresponding to the vertical / horizontal position and aspect ratio of the screen of the playback device. In addition, it is possible to shoot with a frame suitable for the subject.

  In this embodiment, the aspect change operation is performed on the setting screen (menu screen), and the vertical / horizontal position is changed by operating the vertical / horizontal button 37. However, the present invention is not limited to this, and both buttons may be provided with an operation button, and conversely, both operations may be performed on the setting screen (menu screen) without providing an operation button. It doesn't matter. In addition to changing the aspect ratio and the vertical / horizontal direction using the operation member, for example, the camera body 200 may be changed based on the detection output of the tilt sensor 227 according to the operation of shaking the camera body 200.

  Next, the finder display subroutine in step # 15 will be described with reference to FIG. In this finder display, the subject image is optically displayed by an optical finder, and in this case, shooting information and a shooting range are displayed.

  When the flow of finder display shown in FIG. 8A is entered, first, driving of the information display liquid crystal is started (# 121). In this step, driving of the information display liquid crystals 206a and 206b of the in-finder display device 206 is started. The information display liquid crystals 206a and 206b have a photographing mode such as a program photographing mode (P), a shutter speed (“250” in the drawing), an aperture value (“F5.6” in the drawing), and exposure correction (in the drawing). “+0.7”), the flash status and the like are displayed. In this step, the information display liquid crystals 206a and 206b are started to be driven. However, since the backlight is not lit, the photographer cannot visually recognize at this stage.

  Subsequently, it is determined whether or not the horizontal position is selected (# 123). Since the vertical position or the horizontal position can be set by the vertical / horizontal button 37, the determination is made in this step based on the vertical / horizontal setting state. Since the vertical position and the horizontal position change alternately each time the vertical / horizontal button 37 is operated, the latest setting state is confirmed in this flow.

  If the result of determination in step # 123 is that the horizontal position has been selected, the horizontal position liquid crystal backlight is turned on (# 125). When this laterally positioned liquid crystal backlight is turned on, as shown in FIG. 8B, the information display liquid crystal 206a is illuminated, and the photographing information arranged in a horizontal row can be visually recognized.

  On the other hand, if the result of determination in step # 123 is that the horizontal position has not been selected, the vertical position liquid crystal backlight is turned on (# 127). When this vertical position liquid crystal backlight is turned on, the information display liquid crystal 206b is illuminated as shown in FIG. 8C, and the photographing information arranged in a vertical line can be visually recognized.

  When the horizontal position liquid crystal backlight is turned on in step # 125 or the vertical position liquid crystal backlight is turned on in step # 127, the selected aspect ruled line is turned on (# 129). In this step, according to the set aspect ratio and vertical / horizontal position, as shown in FIGS. 8B and 8C, ruled lines 206c and 206d indicating the photographing range are displayed on the entire LCD 205. That is, when the horizontal position is set, as shown in FIG. 8B, two ruled lines above and below the ruled line 206c are displayed, and when the vertical position is set, FIG. As shown in c), two ruled lines on the left and right of the ruled line 206d are displayed. The ruled lines 206c and 206d displayed here are performed based on the set image data output area in steps # 103 and # 107.

  When the selected aspect ruled line is turned on, the original flow is restored. Thus, in the present embodiment, the display position of the shooting information is changed according to the vertical position or the horizontal position. In addition, the shooting range is displayed by ruled lines 206c and 206d in the optical viewfinder. For this reason, even if the vertical position, horizontal position, and aspect ratio are changed, the shooting range and necessary shooting information can be confirmed in the optical viewfinder, which is very convenient.

  In the present embodiment, the shooting range is indicated by a ruled line, but it is of course possible to allow only the shooting range to be transmitted by the full-screen LCD 205 and to block light outside the shooting range. When only the ruled lines are transmitted as in the present embodiment and the other lines are transmitted, it is possible to observe the surroundings other than the shooting range, and when only the shooting range is transmitted, only the completed image is displayed. It can be easily grasped.

  Next, the live view display subroutine in step # 37 will be described with reference to FIG. As described above, this subroutine displays the subject image on the rear LCD 39 based on the image data from the image sensor 221 and the image data in the image data output area set by the setting change subroutine.

  In the live view display flow shown in FIG. 9A, first, the selected aspect display coordinates are set (# 131). In this step, coordinates indicating a range to be displayed as a subject image are set based on the set vertical / horizontal position and aspect ratio information.

  Subsequently, the outside of the image area is painted black (# 133). In this step, based on the display coordinates set in step # 131, as shown in FIGS. 9B to 9E, the outside of the image area is painted black, that is, outside the image display area. 9B is a 4: 3 landscape image, FIG. 9C is a 16: 9 landscape image, FIG. 9D is a 2: 3 portrait image, and FIG. 9E is 9:16. This is an area showing a vertically long image.

  If the area outside the image area is black, information display coordinates are set (# 135). In this step, when the image is in the horizontally long position, as shown in FIGS. 9B and 9C, coordinates for displaying the shooting information in a horizontal row below the image area are set. In the case of the vertically long position, as shown in FIGS. 9D and 9E, coordinates for displaying shooting information in a vertical line on the right side of the image area are set.

  Once the information display area coordinates are set, next, information display is started (# 136). In this step, the shooting information is displayed below or on the right side of the image area. Subsequently, live view image display is started (# 137). In this step, a subject image is displayed as a moving image for observation based on the image data from the image sensor 221 in the image area of the rear LCD 39. Subsequently, the liquid crystal backlight is turned on (# 139). Thereby, the live view display and the shooting information on the rear LCD 39 can be visually recognized. The photographer can determine the composition while observing the subject image and perform photographing.

  As described above, in the present embodiment, when live view display is performed on the rear LCD 39, the subject image is displayed in consideration of the set vertical and horizontal positions and aspect ratio. In addition, the display position of the shooting information is changed according to the vertical and horizontal positions of the image. For this reason, even if the vertical position, the horizontal position, and the aspect ratio are changed, the shooting range and necessary shooting information can be confirmed by the live view display, which is very convenient.

  In the present embodiment, the outside of the image area is painted black so that the image is not displayed at all. However, the present invention is not limited to this. Of course, it does not matter even if the display is made transparent. When displaying with ruled lines or semi-transparent, the image data for live view display is not limited to the image data output area, but is output to the rear LCD 39 including the surrounding image data.

  Next, the reproduction subroutine in step # 45 will be described with reference to the flowchart shown in FIG. As described above, this subroutine reads out the image data recorded on the recording medium A 285 or the recording medium B 287 and reproduces and displays it on the rear LCD 39 or the like. When the playback button 36 is operated, a subroutine for the playback operation starts.

  When the playback operation subroutine is entered, a playback image is first designated (# 141). In this step, the images recorded on the recording medium A 285 and the like are displayed as thumbnails on the rear LCD 39, and the user designates an image that the user desires to reproduce and display with the cursor.

  When the reproduction image is designated, it is next determined whether or not an external output connection is made (# 143). Here, it is determined whether or not an external display device 330 such as a television is connected. If the result of this determination is that the external display device 330 is connected, external playback is performed (# 145). In this step, the image signal from the video signal output circuit 261 is transmitted to the external display device 330, and the image read from the recording medium A285 or the like is reproduced and displayed on the external display device 330. Further, when displaying a vertically long image on the horizontally long external display device 330 during reproduction display, a specific area of the image data is determined, and a part of the image data is displayed around the specific area. This is because when the entire vertically long image is displayed on the horizontally long monitor, the image becomes small and difficult to see. This external reproduction subroutine will be described later with reference to FIG.

  On the other hand, if the result of determination in step # 143 is that the external display device 330 is not connected, liquid crystal monitor playback is performed (# 147). In this step, the image read from the recording medium A285 or the like is reproduced and displayed on the rear LCD 39. This liquid crystal monitor reproduction subroutine will be described later with reference to FIG.

  When external reproduction in step # 145 or liquid crystal monitor reproduction in step # 147 is performed, it is determined whether or not the reproduction is completed (# 149). The camera body 200 in the present embodiment enters the playback display mode by operating the playback button 36, and the playback display mode ends by operating the playback button 36 again. Therefore, in this step, it is determined again whether or not the playback button 36 has been operated.

  If the result of determination in step # 149 is that playback has not ended, processing returns to step # 143 and the above-described operation is executed. On the other hand, if the result of determination is that playback has ended, the playback operation ends and the flow returns to the original flow.

  Next, the liquid crystal monitor reproduction subroutine in step # 147 will be described with reference to the flowchart shown in FIG. In this subroutine, the image data recorded on the recording medium A258 or the like is read and reproduced and displayed on the rear LCD 39.

  When the liquid crystal monitor reproduction subroutine is entered, first, a designated image is read (# 151). That is, image data is read from the recording medium A285 for the image designated in step # 141. Subsequently, the blank portion is painted black (# 153). As described above, since the images in the present embodiment have different vertical and horizontal positions and aspect ratios, according to the vertical and horizontal positions and aspect ratios of the read image data, respectively, as in FIGS. 9B to 9E, Make the margins black.

  Once the blank area has been painted black, monitor reproduction display is then started (# 155). That is, the image is reproduced and displayed on the rear LCD 39 based on the image data read in step # 151.

  When the monitor reproduction display is started, it is next determined whether or not an image selection operation has been performed (# 157). The camera according to the present embodiment can change to the previous or next image by operating the left and right cross buttons 32, and can display the thumbnail image again and select an image from these images. Therefore, in this step, it is determined whether or not these operations have been performed.

  If the result of determination in step # 157 is that an image selection operation has been performed, the designated image is changed (# 161). That is, the image is changed to the image selected by the image selection operation. Thereafter, the process returns to step # 151, where the changed image is read out and reproduced and displayed.

  On the other hand, if the result of determination in step # 157 is that no image has been selected, it is determined whether or not playback has ended (# 159). As described above, when the reproduction button 36 is operated again, the reproduction is completed. Therefore, in this step, it is determined whether or not the reproduction button 36 is operated again.

  If the result of determination in step # 159 is that playback has not ended, processing returns to step # 157 and the above-described operation is executed. On the other hand, if the reproduction is completed, the liquid crystal monitor reproduction subroutine is terminated and the process returns to the original flow.

  As described above, in the present embodiment, when image data is read from the recording medium A 285 or the like and reproduced and displayed, the reproduced display is selectively performed on the external LCD 330 or the rear LCD disposed in the camera body 200. be able to. In addition, when reproducing and displaying on the rear LCD 39, the margin portion is painted black according to the vertical / horizontal position and aspect ratio. Therefore, when shooting at various sizes, it is possible to perform display suitable for the size.

  Next, the external reproduction subroutine executed in step # 145 will be described with reference to FIGS. In this flow, when an image captured in a portrait orientation is displayed on the display device 333 of a landscape monitor screen, the image is prevented from becoming too small.

  When the flow of external reproduction is entered, first, the designated image is read in the same manner as in step # 151 (# 201). Subsequently, it is determined whether or not the cutting mode is set (# 203). Here, the cut-out mode is a mode in which a part is cut out from the photographed image and the part is enlarged and displayed, and can be set in a setting change (menu mode).

  If the result of determination in step # 203 is not cut-out mode, the cutting-in-progress flag is cleared (# 205). This during-cutting flag is a flag indicating that image data within a specified range is cut out from all image data for display, and is set in step # 217 described later. On the other hand, if the result of determination is cut-out mode, it is next determined whether or not the read designated image is a portrait image (# 207). If the result of this determination is that the image is not a portrait image, that is, if the image is a landscape image, the process proceeds to step # 205, and the clipping flag is cleared. This is because in this embodiment, clipping is performed only in the case of a vertically long image.

  If the result of determination in step # 207 is a portrait image, face detection is next performed (# 209). In this step, the determination is made based on the face information attached to the image data and recorded. Note that the image processing 257 may determine whether a face is detected in the image data. If a face is detected as a result of this determination, it is next determined whether or not a plurality of faces have been detected (# 219).

  As a result of the determination in step # 219, when a plurality of faces are detected, the centers of gravity of the positions of the plurality of faces are obtained, and the cut-out coordinates are set based on the centers (# 221). This is because when there are a plurality of faces, an image is cut out with the center of gravity as the center so that these faces are included as much as possible. If the result of determination in step # 219 is that a plurality of faces has not been detected, that is, if there is only one face, the cut-out coordinates are set centering on that face (# 223).

  If the result of determination in step # 209 is that a face has not been detected, it is next determined whether or not a focal point (AF point) has been detected as a result of AF (# 211). In step # 53 or # 57, automatic focus adjustment is performed. In this step, it is determined whether or not the in-focus point has been detected. Since the in-focus information is recorded together with the image data when the image is recorded in step # 83, determination is made based on the recorded in-focus information.

  If the result of determination in step # 211 is that focus has been detected by AF, it is next determined whether or not a plurality of AF points (focus points) have been detected (# 225). Generally, when there are a plurality of subjects, the closest subject is focused, but there may be a plurality of closest focal points. Therefore, in this step, it is determined whether or not there are a plurality of in-focus points.

  If a plurality of AF points are detected as a result of the determination in step # 225, then the cut-out coordinates are set with the centroids of the plurality of AF points as the center (# 227). As in the case of face detection, when there are a plurality of coordinates, the position of the center of gravity is obtained and the cutout coordinates are set. On the other hand, if a plurality of AF points are not detected as a result of the determination, that is, if there is one AF point, that AF point is set as the center cutout coordinate (# 229).

  If the result of determination in step # 221 is that an in-focus point (AF point) could not be detected, center cutout coordinates are set (# 213). If the designated image to be played back was shot with manual focus, an image shot without focusing, or if no information about AF was attached to the image data, Since it is unknown, the cut-out coordinates are set to the center position.

  When step # 213, # 221, # 223, # 227, or # 229 is executed, next, the designated coordinate image is cut out (# 215). That is, in each of the above-described steps, the cut-out coordinates are set, so that the image is cut out based on the set designated coordinates. Once the designated coordinate image has been cut out, a cutting flag is set (# 217).

  When the cutting flag is cleared in step # 205 or the cutting flag is set in step # 217, image signal output is started (# 231). That is, when an image in which a part of the image data is cut out is generated in step # 215, the image signal corresponding to the cut out screen is displayed, and the in-cutting flag is cleared in step # 205. The image signal corresponding to the entire screen is output to the external display device 330 through the contact 330a.

  When the output of the image signal is started, it is next determined whether or not the segmenting flag is set (# 233). If the result of this determination is that a cutting flag is set, it is determined whether or not a scroll operation has been performed (# 239). When the playback display is cut out, only a part of the image is displayed. Therefore, the display area of the image can be moved by the scroll operation. Since the scroll operation is instructed by operating the upper and lower cross buttons 32, in this step, it is determined whether or not the upper and lower cross buttons 32 have been operated.

  If the result of determination in step # 239 is that scrolling has been performed, the cutout coordinates are changed (# 241). That is, the cutout coordinates are changed so as to move the display image in accordance with the operation of the upper and lower cross buttons 32. When the cutout coordinates are changed, the process returns to step # 215, and an image signal corresponding to the changed cutout coordinates is generated and output to the external display device 330.

  If the result of determination in step # 233 is that the cutting flag is not set, or if the result of determination in step # 239 is that scrolling is not in progress, it is determined whether or not an image selection operation has been performed. (# 235). That is, it is determined whether or not a selection operation for changing the reproduction image designated in step # 141 (see FIG. 10) has been performed. Since the reproduction image is changed by operating the left and right cross buttons 32, it is determined in this step whether or not the left and right cross buttons 32 are operated.

  If the result of determination in step # 235 is that an image selection operation has been performed, the designated image is changed (# 245). When the designated image is changed, the process returns to step # 201, the designated image is read, and the above-described processing is performed. On the other hand, if the result of determination in step # 235 is that there has been no image selection operation, it is next determined whether or not playback has ended (# 237). For the end of reproduction, it is determined whether or not the reproduction button 36 has been operated again, as in step # 159.

  If the result of determination in step # 159 is that playback has not ended, processing returns to step # 233 and the above processing is executed. On the other hand, if the reproduction is completed, the process returns to the original flow.

  Next, playback display on the external device 330 performed by the external playback flow shown in FIGS. 12 and 13 will be described with reference to FIGS. FIG. 14 shows an example in which an image is cut out at the face center. FIG. 14A shows an aspect ratio of 3: 2, FIG. 14B shows 4: 3, and FIG. 14C shows 16: 9. This case is shown.

  That is, the image 401 is a photographed image taken with an aspect ratio of 3: 2 portrait, and when this is displayed on the display device 333 of the horizontally long external display device 330, the image 401 is displayed as shown in FIG. A region 411 is displayed. Further, the image 402 is a captured image having an aspect ratio of 4: 3, and when displayed on a horizontally long display device 333, a display area 412 is displayed as shown in FIG. The image 403 is a captured image having an aspect ratio of 16: 9, and when displayed on a horizontally long display device 333, a display area 413 is displayed as shown in FIG.

  The range of the image to be cut out at the face position shown in FIG. 14 is determined when the face is detected in step # 209, and the cut-out coordinates are determined in step # 221 or # 223 depending on the face position. Is done. When the scroll operation is performed (step # 239), the display area is scrolled 411, 412, 413 upward or downward.

  FIG. 15 shows an example in which an image is cut out by AF. As in the case of face detection, the aspect ratios of the captured images 401, 402, and 403 are 3: 2 portrait in FIG. 15 (a), 4: 3 portrait in FIG. 15 (b), and 16: 9 in FIG. 15 (c). They are vertically long and are displayed in display areas 411, 412, and 413, respectively.

  In FIG. 15, a distance measuring point 421 is indicated by a broken line. In the present embodiment, as shown in the figure, one point from the top, one point, three points, seven points, three points, one point, one point, Ranging is performed for a total of 17 points. This distance measuring point is the same for both phase difference AF and imager AF. Also, a solid line in FIG. 15 indicates a focusing point (AF point) 423. The image is cut out so that the in-focus point 423 becomes the center in the vertical direction of the display areas 411, 412, and 413.

  The range of the image to be cut out at the AF point shown in FIG. 15 is determined when the AF is focused in step # 211, and the cut-out coordinate is set in step # 227 or # 229 depending on the focus point. It is determined. When the scroll operation is performed (step # 239), the display area is scrolled 411, 412, 413 upward or downward.

  FIG. 16 shows a case where neither face detection nor AF is performed. Even when the image is taken with manual focus, or when face detection or AF is performed, reproduction is performed when the face position or focus point cannot be detected due to no data attached. The aspect ratios of the captured images 401, 402, and 403 are 3: 2 portrait in FIG. 16A, 4: 3 portrait in FIG. 16B, and 16: 9 portrait in FIG. 16C, respectively. Displayed in areas 411, 412, and 413.

  In FIG. 16, + is the image center. Since there is no information such as face information or in-focus information, in this case, the centers of the captured images 401, 402, and 403 are displayed so as to be the centers of the display areas 411, 412, and 413. In addition, the display areas 411, 412, and 413 move in the vertical direction by the scroll operation.

  As shown in FIGS. 14 to 16, the display areas 411, 412, and 413 have a horizontally long shape, and when the vertically long captured images 401, 402, and 403 are displayed, the short side of the captured image is displayed. It is displayed along the long side of the area. When the aspect ratio of the display device 333 is different from that of the captured image, the blank portion is displayed in black or the like.

  As described above, in the embodiment of the present invention, a specific area is detected in the image data, and the detected specific area is set near the center of the display data. For this reason, even a display device having an aspect ratio different from that of the captured image can be displayed in an appropriate size at an appropriate position.

  In the embodiment of the present invention, in determining the specific area, the face of the subject is detected, the focus point is detected, or the center of the image data is detected. Therefore, the display area can be determined according to the main part of the subject. Further, when there are a plurality of detected faces and focus points, the position of the center of gravity is obtained and the display area is determined. For this reason, even if there are a plurality of faces and in-focus points, an appropriate display area is obtained.

  Furthermore, in the embodiment of the present invention, display is performed while maintaining the aspect ratio of the image data. For this reason, the composition of the original image is reproduced as it is. When changing the aspect ratio, it is possible to prevent a problem that a part of the image is cut and the atmosphere of the original image is changed.

  Furthermore, the conventional imaging device has a problem that the angle of view differs depending on the aspect ratio and the diagonal length differs. That is, there is a problem that the angle of view changes. However, according to the embodiment of the present invention, the diagonal line of the image circle 120 of the image sensor 221 is always constant, and the angle of view does not change.

  In the embodiment of the present invention, as shown in FIGS. 14 to 16, image data is generated from vertically taken images 401, 402, and 403 so as to become horizontally long display areas 411, 412, and 413. Of course, it doesn't matter if the reverse is true. That is, image data may be generated from a horizontally long captured image so as to form a vertically long display area.

  In the embodiment of the present invention, both the optical finder and the live view display are provided. However, either one may be used, for example, only the optical finder may be used, and conversely, only the live view display may be used. .

  Furthermore, in the present embodiment, the face detection is performed by the image processing circuit 257, but it is not limited to hardware and may be processed by software. In addition, the face detection result is recorded when the image data is recorded. However, the present invention is not limited to this, and the face may be detected based on the image data during reproduction.

  Furthermore, in the present embodiment, the digital camera is used as the photographing device. However, the camera may be a digital single-lens reflex camera or a compact digital camera, and may be used for moving images such as video cameras and movie cameras. It may be a camera, or may be a camera built in a mobile phone or a personal digital assistant (PDA). In any case, the present invention can be applied to any device that can generate and transmit image data for display to an external device.

  Furthermore, in the embodiment of the present invention, the display data is generated in the camera body 200 and transmitted to the external display device 330. However, the display data is generated in the camera body 200. However, the present invention is not limited to this, and may be another device, for example, a device such as a personal computer. In this case, a flow similar to the external reproduction subroutine shown in FIG. 12 may be executed based on image data captured by an imaging device such as a camera and recorded on a recording medium.

  The present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, you may delete some components of all the components shown by embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

It is the external appearance perspective view seen from the front side of the digital camera concerning one Embodiment of this invention. It is the external appearance perspective view seen from the back side of the digital camera which concerns on one Embodiment of this invention. It is a block diagram which shows an electric circuit in the digital camera concerning one Embodiment of this invention. It is a figure which shows the image circle of an image pick-up element, the vertical and horizontal position, and the aspect in the digital camera concerning one Embodiment of this invention. 6 is a flowchart illustrating a power-on reset operation in the digital camera according to the embodiment of the present invention. 6 is a flowchart illustrating a shooting operation in the digital camera according to the embodiment of the present invention. 4A and 4B are diagrams for explaining a setting change operation in the digital camera according to the embodiment of the present invention. FIG. 5A is a flowchart of the setting change, and FIG. FIG. 4 is a diagram for explaining the operation of finder display in the digital camera according to the embodiment of the present invention, (a) is a flowchart of finder display, (b) shows finder display in a horizontal position, and (c) is a diagram. Shows the viewfinder display in the vertical position. 4A and 4B are diagrams illustrating an operation of live view display in the digital camera according to the embodiment of the present invention, FIG. 5A is a flowchart of live view display, and FIG. 5B is a live view display at a horizontal position 4: 3. (C) shows live view display at the horizontal position 1: 9, (d) shows live view display at the vertical position 2: 3, and (e) shows live view display at the vertical position 9:16. Indicates. 6 is a flowchart illustrating a reproduction operation in the digital camera according to the embodiment of the present invention. 6 is a flowchart illustrating a liquid crystal monitor operation in the digital camera according to the embodiment of the present invention. 5 is a flowchart showing an external playback operation in the digital camera according to the embodiment of the present invention. 5 is a flowchart showing an external playback operation in the digital camera according to the embodiment of the present invention. FIG. 4 is a diagram showing a reproduction display in which an image is cut out at the face center in the digital camera according to the embodiment of the present invention, where (a) shows an aspect ratio of 3: 2, and (b) shows an aspect ratio of 4: 3. (C) is a case where the aspect ratio is 16: 9. 4A and 4B are diagrams illustrating reproduction display in which an image is cut out based on an AF result in a digital camera according to an embodiment of the present invention, where (a) shows an aspect ratio of 3: 2, and (b) shows an aspect ratio of 4: 3. (C) is a case where the aspect ratio is 16: 9. 4A and 4B are diagrams illustrating reproduction display in which an image is cut out at the center of an image in the digital camera according to the embodiment of the present invention, where FIG. 5A is an aspect ratio of 3: 2, and FIG. (C) is a case where the aspect ratio is 16: 9.

Explanation of symbols

21 ... Release button, 22 ... Front dial, 23 ... Rear dial, 24 ... Body mount, 31 ... LV display button, 32 ... Cross button, 33 ... OK button, 34 ... Power switch, 35 ... Menu button, 36 ... Play button, 37 ... Vertical / horizontal button, 38 ... Eyepiece, 39 ... Rear LCD, 40 ... Control panel, DESCRIPTION OF SYMBOLS 50 ... Built-in flash, 100 ... Interchangeable lens, 101 ... Imaging optical system, 103 ... Aperture, 105 ... Focus position detection mechanism, 106 ... Zoom position detection mechanism, 107 ... Optical system drive mechanism, 109 ... Aperture drive mechanism, 111 ... Lens CPU, 113 ... Lens ROM, 115 ... Lens RAM, 120 ... Image circle, 200 ... Camera body, 201 ..Movable mirror , 203 ... sub-mirror, 204 ... screen, 205 ... full-screen LCD, 206 ... finder display device, 206a ... information display liquid crystal, 206b ... information display liquid crystal, 207 ... penta Prism, 209 ... eyepiece, 211 ... photometric element, 212 ... photometric processing circuit, 213 ... shutter, 215 ... dustproof filter, 217 ... low pass filter, 221 ... image sensor 223: Image sensor drive circuit, 225: Pre-processing circuit, 227 ... Tilt sensor, 228 ... Tilt detection circuit, 229 ... Shake sensor, 230 ... Shake correction circuit, 231 ... Shift mechanism drive circuit, 233 ... Shift mechanism, 235 ... Dustproof filter drive circuit, 237 ... Shutter drive mechanism, 239 ... Mirror drive Mechanism, 241 ... Phase difference AF sensor, 243 ... Phase difference AF processing circuit, 244 ... Light source sensor, 245 ... Light source processing circuit, 246 ... Illuminance sensor, 247 ... Illuminance processing circuit 248 ... Remote control reception sensor, 249 ... Remote control reception processing circuit, 250 ... ASIC, 251 ... Body CPU, 252 ... Bus, 253 ... Contrast AF circuit, 255 ... AE Circuit, 257... Image processing circuit, 259... Compression / decompression circuit, 261... Video signal output circuit, 263... LCD drive circuit, 265. Circuits, 269, various switches, 271, input / output circuits, 273, communication circuits, 275, flash memory control circuits, 277, flash memos 279 ... SDRAM control circuit, 281 ... SDRAM, 283 ... recording medium control circuit, 285 ... recording medium A, 287 ... recording medium B, 289 ... dial detection circuit, 291 ..Power supply circuit, 292 ... battery, 293 ... external power supply, 295 ... finder display drive circuit, 297 ... control panel drive circuit, 301 ... charge circuit, contact, 303 ..Flash light emitting circuit, 305 ... arc tube, 310 ... external flash, 310a ... contact, 310b ... contact, 311 ... flash CPU, 313 ... charge circuit, 315 ... Flash light emission circuit, 317 ... arc tube, 318 ... reflection shade, 319 ... zoom drive circuit, 320 ... external device (PC), 320a ... contact 321 ... Device CPU, 330 ... External display device (TV), 330a ... Contact, 331 ... Display device drive circuit, 333 ... Display device, 341 ... Communication contact, 401 ... Captured image (3: 2), 402 ... Captured image (4: 3), 403 ... Captured image (16: 9), 411 ... Display area (3: 2), Display area (4: 3) 413 ... display area (16: 9), 421 ... ranging point, 423 ... focusing point (AF point)

Claims (13)

A display data output unit for outputting display data for displaying part or all of the image data;
A detection unit for detecting a specific region in the image data;
A control unit that controls to display the detected specific area near the center of the display data;
A display control device.   The display control apparatus according to claim 1, wherein the detection unit detects a face of a subject, detects a focus point, or detects a center of the image data.   When detecting the faces of a plurality of subjects, the control unit controls to display the center of gravity of the position of each face near the center of the display data, and when detecting a plurality of in-focus points. The display control device according to claim 2, wherein control is performed so that the center of gravity of each point is displayed near the center of the display data.   The display control apparatus according to claim 1, wherein the display data is a part or all of the image data while maintaining an aspect ratio of the image data.   The display data has a horizontally long shape, and when displaying the vertically long image data, the short side of the image data can be displayed in accordance with the long side of the display unit. The display control apparatus described.   5. The display data according to claim 1, wherein the display data has a vertically long shape, and when the horizontally long image data is displayed, the short side of the image data can be displayed in accordance with the long side of the display unit. The display control apparatus described. In a control method of a display device for outputting display data for displaying part or all of image data,
Detect a specific area in the image data,
Control to display the detected specific area near the center of the display data,
A control method for a display device.   The display device according to claim 7, wherein when detecting a specific area in the image data, a face of a subject is detected, a focus detection point is detected, or a center of the image data is detected. Control method.   When multiple faces of subjects are detected, control is performed so that the center of gravity of the position of each face is displayed near the center of the display data. When multiple focus points are detected, the display 9. The method of controlling a display device according to claim 8, wherein control is performed such that the center of gravity of each point is displayed near the center of the image data.   The display device control method according to claim 7, wherein the display data maintains an aspect ratio of the image data and is a part or all of the image data.   11. The display data according to claim 7, wherein the display data has a horizontally long shape, and when the vertically long image data is displayed, the short side of the image data is displayed in accordance with the long side of the display unit. A control method of the display device described.   11. The display data according to claim 7, wherein the display data has a vertically long shape, and when the horizontally long image data is displayed, the short side of the image data is displayed in accordance with the long side of the display unit. A control method of the display device described. In a program for outputting display data for displaying part or all of image data,
Detect a specific area in the image data,
Control to display the detected specific area near the center of the display data,
A program that causes a computer to execute.