JP2013198095A - Electronic apparatus, method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To record proper video data by a recording device regardless of setting of a color space corresponding to the external device when recording video data displayed by the external device by a recording device. For the purpose.
SOLUTION: Setting means for setting a range relating to a color gradation of video data to be transmitted to the external device in accordance with information relating to display capability of the external device acquired from the external device; and for transmitting to the external device In order to generate the video data, the image processing means for performing image processing according to the range relating to the color gradation set by the setting means, and the video data subjected to the image processing by the image processing means are externally Control means for performing control for transmission to the apparatus.
[Selection] Figure 1

Description

  The present invention relates to an electronic device that transmits video data to the outside.

  Currently, a communication interface called High-Definition Multimedia Interface (HDMI) (registered trademark) has been proposed. A communication system compliant with the HDMI standard includes a source device and a sink device. The source device can transmit the video data to the outside via the HDMI interface. The sink device can receive the video data from the source device via the HDMI interface and display the received video data on the display.

  2. Description of the Related Art Conventionally, a source device that acquires EDID (Extended Display Identification Data) including resolution information of a sink device from the sink device is known (Patent Document 1). The source device generates data to be displayed on the sink device using the EDID acquired from the sink device.

JP 2009-77347 A

  In such a communication system, there is a recording device that records video data transmitted from a source device to a sink device. In this case, the recording device records the video data generated by the source device using the EDID acquired from the sink device.

  However, since the video data transmitted from the source device to the sink device corresponds to the display settings of the sink device, the video data that can be recorded by the recording device may be limited to the display settings of the sink device. It was. For example, when the sink device is set to display in a specific color space, the color space of the video data recorded in the recording device is also limited to the color space method set in the sink device. End up. For this reason, appropriate video data could not be recorded in the recording device.

  Therefore, according to the present invention, when video data to be displayed by an external device is recorded by a recording device, proper video data is recorded by the recording device regardless of the color space setting corresponding to the external device. With the goal.

  An electronic apparatus according to the present invention includes: a setting unit that sets a range related to a color gradation of video data to be transmitted to the external device according to information about the display capability of the external device acquired from the external device; and the external device In order to generate video data to be transmitted to the image processing unit, image processing is performed according to a range related to the color gradation set by the setting unit, and image processing is performed by the image processing unit. And control means for performing control for transmitting the video data to the external device.

  In addition, the method according to the present invention includes a step of setting a range relating to a color gradation of video data to be transmitted to the external device according to information relating to the display capability of the external device acquired from the external device; In order to generate video data to be transmitted to the image processing apparatus, a step of performing image processing according to a set color gradation range, and a step of transmitting the image data subjected to the image processing to the external device And a step of performing control.

  According to the present invention, when video data to be displayed by an external device is recorded by a recording device, proper video data is recorded by the recording device regardless of the color space setting corresponding to the external device. Can do.

1 is a block diagram illustrating an example of a communication system according to Embodiments 1 and 2. FIG. 6 is a flowchart illustrating an example of a data transmission process performed by the electronic apparatus according to the first and second embodiments. 6 is a flowchart illustrating an example of setting processing performed by the electronic apparatus according to the first and second embodiments. 10 is a flowchart illustrating an example of a switching process performed by an electronic apparatus according to a second embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the following examples are merely examples, and the present invention is not limited to the following examples.

[Example 1]
In the communication system according to the first embodiment, as illustrated in FIG. 1, the electronic device 100 and the external device 200 are communicably connected via a connection cable 500, a distributor 400, and a connection cable 600. In addition, the electronic device 100 and the recording apparatus 300 are communicably connected via a connection cable 500, a distributor 400, and a connection cable 700. The electronic device 100, the external device 200, the recording device 300, and the distributor 400 are devices that can perform communication corresponding to the HDMI (High-Definition Multimedia Interface) (registered trademark) standard.

  In the first embodiment, the connection cable 500, the connection cable 600, and the connection cable 700 are communication interfaces corresponding to the HDMI standard.

  The connection cable 500 includes a DDC (Display Data Channel) line 501 and a TMDS (Transition-Minimized Differential Signaling) line 502. Furthermore, the connection cable 500 includes a CEC (Consumer Electronics Control) line 503. Similarly, the connection cable 600 includes a DDC line 601, a TMDS line 602, and a CEC line 603. Similarly, the connection cable 700 includes a DDC line 701, a TMDS line 702, and a CEC line 703.

  The electronic device 100 may be an imaging device such as a digital single-lens reflex camera, a digital still camera, or a digital video camera, or may be a device such as a mobile phone or a smartphone. The external device 200 may be a device such as a television, a personal computer, or a projector, or may be a display device. The recording device 300 may be a device such as a recorder or a hard disk drive.

  Next, the electronic device 100 will be described. The electronic device 100 includes a CPU (Central Processing Unit) 101, a memory 102, a communication unit 103, an imaging unit 104, an image processing unit 105, a recording unit 106, a display unit 107, and an operation unit 108.

  The CPU 101 controls the operation of the electronic device 100 according to a computer program stored in the memory 102. The CPU 101 can know the image display capability and audio processing capability of the external device 200 by analyzing the device information of the external device 200 acquired from the external device 200. The device information of the external device 200 is EDID (Extended display identification data) or E-EDID (Enhanced EDID) recorded in the external device 200. Both EDID and E-EDID include identification information of the external device 200, information on resolution, scanning frequency, aspect ratio, color space, and the like supported by the external device 200. E-EDID is an extension of EDID and includes more capability information than EDID. For example, the E-EDID includes information regarding the format of video data and audio data supported by the external apparatus 200. Hereinafter, both EDID and E-EDID are referred to as “EDID”.

  The electronic device 100 that has acquired the EDID from the external device 200 via the connection cable 500, the distributor 400, and the connection cable 600 analyzes the EDID acquired via the DDC line 501. The electronic device 100 can know the image display capability, audio processing capability, and the like of the external device 200 from the EDID analysis result. Furthermore, the electronic device 100 can generate video data and audio data suitable for the image display capability and audio processing capability of the external device 200.

  The memory 102 functions as a work area for the CPU 101. The memory 102 also stores EDID acquired from the external device 200, information on the electronic device 100, the result of analysis by the CPU 101, and the like. The work area of the CPU 101 is not limited to the memory 102 but may be an external memory such as a hard disk drive.

  The communication unit 103 has a connection terminal (connector) for connecting the connection cable 500. The communication unit 103 acquires EDID from the external apparatus 200 via the DDC line 501, the distributor 400, and the DDC line 601. The EDID acquired from the external device 200 is supplied to the CPU 101.

  Furthermore, the communication unit 103 includes a data transmission unit 103a and a command processing unit 103b.

  The data transmission unit 103a transmits video data suitable for the image display capability of the external device 200, audio data suitable for the audio processing capability of the external device 200, and auxiliary data via the TMDS line 502, the distributor 400, and the TMDS line 602. Transmit to the external device 200. The video data and audio data transmitted to the external device 200 by the data transmission unit 103a are generated according to the EDID acquired from the external device 200.

  When the electronic device 100 is in the shooting mode, video data generated by the imaging unit 104 and subjected to image processing by the image processing unit 105 is transmitted to the external device 200 by the data transmission unit 103a. In this case, audio data generated by a microphone (not shown) is also transmitted to the external apparatus 200 by the data transmission unit 103a together with the video data.

  When the electronic device 100 is in the playback mode, video data read from the recording medium 106a by the recording unit 106 and subjected to image processing by the image processing unit 105 is transmitted to the external device 200 by the data transmission unit 103a. . In this case, the audio data read from the recording medium 106a by the recording unit 106 is also transmitted to the external apparatus 200 by the data transmission unit 103a together with the video data.

  When the electronic device 100 is in the shooting mode and in the predetermined communication mode, video data generated by live view shooting by the imaging unit 104 and subjected to image processing by the image processing unit 105 is data transmission unit 103a. Is transmitted to the external device 200. In this case, the audio data may be transmitted to the external device 200 together with the video data by the data transmission unit 103a. When the electronic device 100 is in the shooting mode and in the predetermined communication mode, auxiliary data such as information related to shooting is not superimposed on the video data transmitted by the data transmission unit 103a. Note that the information related to shooting includes information indicating the shooting date and time, information indicating the shooting point, information related to autofocus, information related to automatic exposure, information related to shutter speed, and the like.

  When the electronic device 100 is in the shooting mode and in the predetermined communication mode, the electronic device 100 transmits the through video to the outside. Note that the through video includes video data generated by live view shooting by the imaging unit 104 and subjected to image processing by the image processing unit 105. The through video includes video data generated by the imaging unit 104 and the image processing unit 105 before a release instruction is given to the electronic device 100. The through video is generated by the imaging unit 104 and the image processing unit 105 before an instruction for recording the video data generated by the imaging unit 104 and the image processing unit 105 on the recording medium 106a is given to the electronic device 100. Video data to be played.

  The command processing unit 103b can transmit a command corresponding to the CEC protocol to the external device 200 connected via the CEC line 503, the distributor 400, and the CEC line 603. Further, the command processing unit 103b can receive a command corresponding to the CEC protocol from the external device 200 connected via the CEC line 503, the distributor 400, and the CEC line 603.

  In addition, the command processing unit 103b can transmit a command corresponding to the CEC protocol to the recording apparatus 300 connected via the CEC line 503, the distributor 400, and the CEC line 703. Further, the command processing unit 103b can receive a command corresponding to the CEC protocol from the recording apparatus 300 connected via the CEC line 503, the distributor 400, and the CEC line 703.

  Note that the command processing unit 103b can supply the CPU 101 with a command received from any one of the external device 200 and the recording device 300. The CPU 101 analyzes the command supplied from the command processing unit 103b, and controls the electronic device 100 according to the analysis result.

  Note that a command to be transmitted to any one of the external device 200 and the recording device 300 is generated by the CPU 101. The CPU 101 analyzes the command supplied from the command processing unit 103b, and controls the electronic device 100 according to the analysis result.

  The imaging unit 104 generates video data such as still image data and moving image data from an optical image of a subject incident through a lens unit (not shown). The video data generated by the imaging unit 104 is supplied to the image processing unit 105.

  The image processing unit 105 performs image processing such as pixel interpolation processing and color conversion processing on video data supplied from any one of the imaging unit 104, the memory 102, and the recording unit 106. Further, the image processing unit 105 includes a compression / expansion unit that compresses video data by adaptive discrete cosine transform (ADCT) or the like and decompresses the compressed video data. As a method for compressing video data, there are a JPEG method, an MPEG method, a RAW method, and the like. Video data supplied from any one of the imaging unit 104, the memory 102, and the recording unit 106 is subjected to compression processing or expansion processing by a compression / decompression unit, and is sent to any one of the recording unit 106 and the communication unit 103. Is output.

  Further, the image processing unit 105 is suitable for the image display capability of the external device 200 from the video data supplied from any one of the imaging unit 104, the memory 102, and the recording unit 106 based on the EDID acquired from the external device 200. Generated video data. In this case, the image processing unit 105 supplies video data generated based on EDID to at least one of the communication unit 103 and the recording unit 106.

  The recording unit 106 records the video data generated by the imaging unit 104 and subjected to image processing by the image processing unit 105 on the recording medium 106a. Furthermore, the recording unit 106 records audio data generated by a microphone unit (not shown) on the recording medium 106a. The recording unit 106 reads out at least one of video data and audio data recorded on the recording medium 106a from the recording medium 106a. The video data read from the recording medium 106 a by the recording unit 106 is supplied to the image processing unit 105.

  The recording medium 106 a may be a memory built in the electronic device 100 or an external memory that is detachable from the electronic device 100. Further, the recording medium 106a may be a memory card or a hard disk drive.

  The display unit 107 includes a display device such as a liquid crystal display. The display unit 107 displays the video data generated by the imaging unit 104 when the electronic device 100 is in the shooting mode. Further, when the electronic device 100 is in the playback mode, the display unit 107 displays the video data read from the recording medium 106a.

  The operation unit 108 provides a user interface for operating the electronic device 100. The operation unit 108 includes a power button, a mode change button, a shutter button, a cross button, a menu button, and the like for operating the electronic device 100, and each button includes a switch, a touch panel, and the like. The CPU 101 can control the electronic device 100 in accordance with a user instruction input via the operation unit 108. When a button on the operation unit 108 is operated by the user, an operation signal corresponding to each button is input from the operation unit 108 to the CPU 101. The CPU 101 analyzes the operation signal input from the operation unit 108 and determines processing corresponding to the operation signal according to the analysis result. The CPU 101 controls the electronic device 100 to execute processing corresponding to the operation signal input from the operation unit 108.

  The user can set the electronic device 100 to one of the shooting mode and the playback mode using the operation unit 108. When the electronic device 100 is in the shooting mode, the user can use the operation unit 108 to select whether to set the electronic device 100 to a predetermined communication mode.

  The distributor 400 receives video data, audio data, and auxiliary data transmitted from the electronic device 100 to the external device 200 via the TMDS line 502 and supplies the received data to the external device 200 and the recording device 300.

  Video data transmitted by the electronic device 100 is supplied to the external apparatus 200 via the TMDS line 502, the distributor 400, and the TMDS line 602. Further, the video data transmitted by the electronic device 100 is supplied to the recording apparatus 300 via the TMDS line 502, the distributor 400, and the TMDS line 702. Note that the audio data and auxiliary data transmitted by the electronic device 100 are the same as the video data transmitted by the electronic device 100.

  Next, the external device 200 will be described. The external device 200 displays video data received from the electronic device 100 on a display (not shown), and outputs audio data received from the electronic device 100 from a speaker (not shown). The external device 200 records the EDID. Furthermore, when the display setting of the external device 200 is changed, the external device 200 rewrites information included in the EDID according to the changed display setting.

  Next, the recording apparatus 300 will be described. The recording apparatus 300 includes a CPU 301, an image processing unit 302, a communication unit 303, a recording unit 304, an operation unit 305, and a memory 306.

  The CPU 301 controls the operation of the recording device 300 according to the computer program recorded in the memory 306.

  The image processing unit 302 performs various image processing on the video data supplied from the communication unit 303. The video data that has been subjected to image processing by the image processing unit 302 is supplied to the recording unit 304.

  The communication unit 303 has a connection terminal for connecting the connection cable 700.

  The communication unit 303 receives video data, audio data, and auxiliary data transmitted from the electronic device 100 via the TMDS line 702. Video data received from the electronic device 100 by the communication unit 303 is supplied to the image processing unit 302. The audio data received from the electronic device 100 by the communication unit 303 is supplied to the recording unit 304 after specific processing is performed. The auxiliary data received from the electronic device 100 by the communication unit 303 is supplied to the CPU 301.

  The recording unit 304 records the video data subjected to the image processing by the image processing unit 302 on the recording medium 304a. Further, the recording unit 304 records the audio data supplied from the communication unit 303 on the recording medium 304a. The recording medium 304 a may be a memory built in the recording apparatus 300 or an external memory that is removable from the recording apparatus 300.

  An operation unit 305 provides a user interface for operating the recording apparatus 300.

  In the first embodiment, the same data as the video data, audio data, and auxiliary data transmitted from the electronic device 100 to the external device 200 is transmitted from the electronic device 100 to the recording device 300 via the distributor 400. And

  The distributor 400 may be externally connected to the external device 200 and the recording device 300. The external device 200 may include a distributor 400 and a recording device 300. The external device 200 may include a distributor 400 and be externally connected to the recording device 300. The distributor 400 may be any device that supplies at least one of video data, audio data, and auxiliary data output from the electronic device 100 to the external device 200 and the recording device 300.

  Next, a data transmission process performed by the electronic device 100 according to the first embodiment will be described with reference to FIG. The data transmission process is executed when the operation mode of the electronic device 100 is the shooting mode and the predetermined communication mode. In the first embodiment, a case where the CPU 101 controls data transmission processing according to a computer program stored in the memory 102 will be described.

  In step S201, the CPU 101 determines whether or not the electronic device 100 is in the shooting mode and the predetermined communication mode. If the CPU 101 determines that the electronic device 100 is in the shooting mode and the predetermined communication mode (Yes in S201), the process proceeds from S201 to S202. When the CPU 101 determines that the electronic device 100 is not in the shooting mode (No in S201), the flowchart returns to S201. When the CPU 101 determines that the electronic device 100 is not in the predetermined communication mode (No in S201), the flowchart returns to S201.

  In S202, the CPU 101 performs setting processing described later. When the setting process is performed, the flowchart proceeds to S203. When the setting process is performed by the CPU 101, the color gradation of the video data transmitted from the data transmission unit 103a to the outside is set.

  In step S203, the CPU 101 performs processing for starting live view shooting. In this case, the subject light is guided to an imaging element (not shown) included in the imaging unit 104, and imaging data is generated by the imaging element. Imaging data generated by the imaging element is converted into digital data by an A / D converter included in the imaging unit 104 and supplied to the image processing unit 105. The digital data supplied to the image processing unit 105 is subjected to pixel interpolation processing and color conversion processing by the image processing unit 105. At this time, the color conversion process performed on the digital data by the image processing unit 105 is performed based on the color gradation range set by the setting process of S202. Digital data that has been subjected to pixel interpolation processing and color conversion processing by the image processing unit 105 is stored in the memory 102 as video data. In this case, the flowchart proceeds from S203 to S204. In S203, the imaging unit 104 and the image processing unit 105 may perform autofocus processing, automatic exposure processing, white balance processing, and the like. Note that the image processing unit 105 performs color conversion processing on the digital data according to the color gradation range set in S202. Further, the image processing unit 105 performs image processing other than the color conversion processing on the digital data according to the analysis result of the EDID acquired from the external device 200.

  In S204, the CPU 101 controls the data transmission unit 103a to transmit the video data stored in the memory 102 to the external device 200 in S203. In this case, audio data and auxiliary data may also be transmitted to the external device 200 together with the video data. When transmission of video data is started, the flowchart proceeds from S204 to S205. In step S <b> 204, the video data transmitted from the electronic device 100 is supplied to the external device 200 and the recording device 300 via the distributor 400.

  In step S <b> 205, the CPU 101 determines whether an operation for instructing the end of live view shooting has been performed on the operation unit 108. If the CPU 101 determines that an operation for instructing the end of live view shooting has been performed on the operation unit 108 (Yes in S205), the process proceeds from S205 to S206. When the CPU 101 determines that an operation for instructing the end of the live view shooting is not performed on the operation unit 108 (No in S205), the flowchart returns from S205 to S203.

  When the operation for instructing the end of the live view shooting is not performed (No in S205), when the setting related to the color space or the setting related to the color gradation of the external device 200 is changed, the electronic device 100 Obtains the EDID from the external device 200 again. Thereafter, the CPU 101 performs a process of transmitting video data to the external apparatus 200 after performing the setting process of S202.

  When the operation for instructing the end of live view shooting is not performed (No in S205), when transmitting video data to a device different from the external device 200, the electronic device 100 transmits the video data. Obtain the EDID from the target device. After that, the CPU 101 performs processing for transmitting the video data to the outside after performing the setting processing in S202.

  In step S206, the CPU 101 performs a process for ending the live view shooting. In this case, the CPU 101 controls the imaging unit 104 and the image processing unit 105 so as to stop the process of generating video data from the subject. Further, the CPU 101 controls the data transmission unit 103a so as to stop transmission of video data. In this case, this flowchart ends.

  When the electronic device 100 is a single-lens reflex camera, in S203, the CPU 101 raises a mirror (not shown) included in the imaging unit 104 so that light from the subject is guided to the imaging element. In step S206, the CPU 101 lowers a mirror (not shown) included in the imaging unit 104 so that light from the subject is not guided to the imaging element.

  Next, a setting process performed by the electronic device 100 according to the first embodiment will be described with reference to FIG. The setting process is a process performed in S202 of FIG. In the first embodiment, a case where the CPU 101 controls setting processing according to a computer program stored in the memory 102 will be described.

  In step S <b> 301, the CPU 101 determines whether EDID has been acquired from the external device 200. When the CPU 101 determines that the EDID has been acquired from the external device 200 (Yes in S301), the process proceeds from S301 to S302. When the CPU 101 determines that the EDID has not been acquired from the external device 200 (No in S301), the flowchart returns to S301. When the EDID is not acquired from the external device 200 (No in S301), the CPU 101 performs a process for acquiring the EDID from the external device 200.

  In step S <b> 302, the CPU 101 analyzes the EDID acquired from the external device 200. The EDID analysis result analyzed by the CPU 101 is recorded in the memory 102. In this case, the flowchart proceeds from S302 to S303.

  In step S303, the CPU 101 determines whether the color space set by the external apparatus 200 is YCbCr or RGB according to the EDID analysis result. The CPU 101 determines whether or not the color space set by the external device 200 is RGB. If the color space set by the external device 200 by the CPU 101 is RGB (Yes in S303), the flowchart proceeds from S303 to S306. If the color space set by the external device 200 is not RGB by the CPU 101, that is, if the color space set by the external device 200 is YCbCr (No in S303), the process proceeds from S303 to S304.

  In step S <b> 304, the CPU 101 determines whether it is set to perform color gradation expansion. Note that the user can use the operation unit 108 to set the color gradation expansion. If the CPU 101 determines that the color gradation expansion is set (Yes in S304), the process proceeds from S304 to S307. When it is determined by the CPU 101 that the color gradation expansion is not set (No in S304), the process proceeds from S304 to S305.

  In step S305, the CPU 101 sets the color gradation corresponding to the video data transmitted to the outside by the data transmission unit 103a to be in the first range.

  A 1st range is expressing between 16 and 235 between white and black. When the color gradation is set to the first range by the CPU 101, this flowchart ends, and the process proceeds to S203 of the data transmission process in FIG. In this case, the video data transmitted to the outside by the data transmission unit 103a is data that has been subjected to image processing such as color conversion processing based on the first range.

  In step S306, the CPU 101 determines whether or not the full range is selected for the color gradation corresponding to the video data transmitted to the outside by the data transmission unit 103a. When the CPU 101 determines that the full range is selected for the color gradation corresponding to the video data transmitted to the outside by the data transmission unit 103a (Yes in S306), the process proceeds from S306 to S307. When the CPU 101 determines that the full range is not selected for the color gradation corresponding to the video data transmitted to the outside by the data transmission unit 103a (No in S306), the process proceeds from S306 to S304.

  In step S307, the CPU 101 sets the color gradation corresponding to the video data transmitted to the outside by the data transmission unit 103a to be in the second range.

  The second range is to express between 0 and 255 between white and black. When the color gradation is set to the second range by the CPU 101, this flowchart ends, and the process proceeds to S203 of the data transmission process of FIG. In this case, the video data transmitted to the outside by the data transmission unit 103a is data that has been subjected to image processing such as color conversion processing based on the second range. When the color space set by the external device 200 is RGB (Yes in S303), the CPU 101 determines the color gradation corresponding to the video data transmitted to the outside by the data transmission unit 103a as the first color tone. Either the range or the second range may be used.

  The electronic apparatus 100 according to the first embodiment selects an appropriate color gradation range according to the color space corresponding to the external device 200, and the video data generated according to the selected color gradation range. Is supplied to the external device 200 and the recording device 300. Therefore, the recording apparatus 300 can record the video data generated by the electronic device 100 with high quality without being restricted by the color space set by the external apparatus 200. Furthermore, the electronic device 100 can cause the recording device 300 to record appropriate video data and display the appropriate video data on the external device 200.

  Therefore, the electronic device 100 can cause the recording device 300 to record appropriate video data regardless of the color space setting by the external device 200.

  Note that the data transmission process in FIG. 2 and the setting process in FIG. 3 may be performed after it is detected that the recording apparatus 300 records video data received from the electronic device 100. Further, the data transmission process in FIG. 2 and the setting process in FIG. 3 are controlled so as to be performed by the CPU 101 depending on whether or not the recording apparatus 300 has means for recording the video data received from the electronic device 100. May be.

[Example 2]
In the second embodiment, description of parts common to the first embodiment will be omitted, and parts different from the first embodiment will be described.

  Next, switching processing performed by the electronic device 100 in the second embodiment will be described with reference to the flowchart of FIG. In the second embodiment, a case where the CPU 101 controls the switching process according to a computer program stored in the memory 102 will be described. Note that the switching process of FIG. 4 may be performed while the video data is being transmitted to the outside by the data transmission unit 103a in the data transmission process of FIG.

  In S401, it is determined whether or not the electronic device 100 is in the recording mode.

  The recording mode is a mode for recording moving image data generated by the imaging unit 104 and the image processing unit 105 on the recording medium 106a. When video data is transmitted from the electronic device 100 to the external device 200, or when the electronic device 100 is in the recording mode, the electronic device 100 transmits data corresponding to the video data transmitted to the external device 200 to the recording medium 106a. To record.

  When the CPU 101 determines that the electronic device 100 is in the recording mode (Yes in S401), the process proceeds from S401 to S402. When the CPU 101 determines that the electronic device 100 is not in the recording mode (No in S401), the process proceeds from S401 to S405.

  If it is set in step S <b> 402 to extend the color gradation, the CPU 101 cancels the setting related to the color gradation expansion in a state where the setting related to the color gradation expansion is stored in the memory 102. . In this case, even if the setting related to the color gradation expansion is canceled, the setting related to the color gradation expansion performed by the user is stored in the memory 102. In this case, the flowchart proceeds from S402 to S403.

  In step S403, the CPU 101 performs the setting process illustrated in FIG. When the setting process of FIG. 3 is performed, the flowchart proceeds from S403 to S404.

  In step S <b> 404, the CPU 101 restores the settings related to the color gradation expansion canceled in step S <b> 402. In this case, the CPU 101 returns to the setting relating to the expansion of the gradation of the color stored in the memory 102 in S402. In this case, this flowchart ends.

  In step S405, the CPU 101 performs the setting process illustrated in FIG. When the setting process of FIG. 3 is performed, this flowchart ends.

  The electronic device 100 according to the second embodiment has the same effects as those of the first embodiment with respect to processes and configurations common to the first embodiment.

  The electronic device 100 according to the second embodiment transmits video data in a color space corresponding to the external device 200 to the external device 200 even when the electronic device 100 records video data, and is appropriate for the external device 200. Video data corresponding to a gradation range of various colors can be displayed. Therefore, the video data recorded by the electronic device 100 can be confirmed by the external device 200. In addition, when video data is recorded by the electronic device 100, the video data received from the electronic device 100 may be recorded by the recording device 100.

  In S401, the CPU 101 may determine whether or not the electronic device 100 is on standby for recording moving image data. In this case, when the CPU 101 determines that the electronic device 100 is on standby for recording moving image data (Yes in S401), the process proceeds from S401 to S402. If the CPU 101 determines that the electronic device 100 is not waiting to record moving image data (No in S401), the process proceeds from S401 to S406.

  The first range in the first and second embodiments is not limited to 16 to 235, and the second range is not limited to 0 to 255. For example, if the system represents a color space with a 10-bit width, the first range may be represented by 64 to 940, and the second range may be represented by 0 to 1023.

  The electronic device 100, the external device 200, the recording device 300, the distributor 400, the connection cable 500, the connection cable 600, and the connection cable 700 may correspond to a standard that is compatible with the HDMI standard.

  Note that the electronic device 100, the external device 200, the recording device 300, the distributor 400, the connection cable 500, the connection cable 600, and the connection cable 700 may be compatible with the DVI (Digital Visual Interface) (registered trademark) standard. Good.

  The electronic device 100, the external device 200, the recording device 300, the distributor 400, the connection cable 500, the connection cable 600, and the connection cable 700 may correspond to the Display Port (registered trademark) standard.

  Further, the electronic device 100, the external device 200, the recording device 300, and the distributor 400 may correspond to DiVa (Digital Interface for Video and Audio). Furthermore, the connection cable 500, the connection cable 600, and the connection cable 700 may correspond to DiVa.

  Further, the electronic device 100, the external device 200, the recording device 300, and the distributor 400 may correspond to an MHL (Mobile High-definition Link) (registered trademark) standard. Furthermore, the connection cable 500, the connection cable 600, and the connection cable 700 may correspond to the MHL standard.

  The video data generated by the electronic device 100 may be transmitted to at least one of the external device 200, the recording device 300, and the distributor 400 wirelessly.

[Other embodiments]
The electronic device according to the present invention is not limited to the electronic device described in the first and second embodiments. The electronic apparatus according to the present invention can be realized by a system including a plurality of devices, for example.

  Further, the processing, configuration, function, and system described in the first and second embodiments can be realized by a computer program that can be executed by a computer. In this case, the computer program is read from the computer-readable recording medium by the computer and executed by the computer. In this case, a hard disk device, an optical disc, a CD-ROM, a CD-R, a memory card, a ROM, or the like can be used as the computer-readable recording medium. The computer program may be provided from an external device to the computer via a communication interface and executed by the computer.

100 Electronic Device 200 External Device 300 Recording Device

Claims (10)

Setting means for setting a range relating to a color gradation of video data to be transmitted to the external device in accordance with information relating to the display capability of the external device acquired from the external device;
Image processing means for performing image processing in accordance with a range relating to the gradation of the color set by the setting means in order to generate video data to be transmitted to the external device;
An electronic apparatus comprising: control means for performing control for transmitting video data subjected to image processing by the image processing means to an external device.   The said setting means sets the range regarding the gradation of the color of the video data transmitted to the said external apparatus to any one of a 1st range and a said 1st range. Electronic equipment. A determination means for determining whether or not the range relating to the color gradation is set to be extended;
If it is determined that the range relating to the color gradation is set to be extended, the setting means sets the range relating to the color gradation of the video data to be transmitted to the external device to the second range,
If it is determined that the range relating to the color gradation is set to be extended, the setting means sets the range relating to the color gradation of the video data to be transmitted to the external device to the first range. The electronic device according to claim 2.   When the moving image data is recorded by the electronic device, the control unit cancels the setting related to the expansion of the range related to the color gradation when the setting related to the color gradation is extended. The electronic device according to claim 3, wherein   When the color space corresponding to the external device is RGB, the range related to the color gradation of the video data transmitted to the external device is one of the first range and the second range. The electronic device according to claim 2, wherein: The first range is represented by 16 to 235 between white and black,
6. The electronic apparatus according to claim 2, wherein the second range is represented by 0 to 255 between white and black.   The electronic device according to claim 1, wherein the electronic device is connected to a recording device that records video data transmitted to the external device by the electronic device.   The electronic device uses HDMI (High-Definition Multimedia Interface), DiVa (Digital Interface for Video and Audio), Display Port, and DVI (Digital Visual Interface) as one of the external video data. The electronic apparatus according to claim 1, wherein the electronic apparatus is an electronic device. Setting a range relating to a color gradation of video data to be transmitted to the external device according to information relating to the display capability of the external device acquired from the external device;
Performing image processing according to a set color gradation range to generate video data for transmission to the external device;
And a step of performing control for transmitting video data subjected to image processing to an external device.   The program for functioning a computer as an electronic device of any one of Claim 1 to 7.

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