JP2004072341A - Image processing device - Google Patents

Abstract

An image processing apparatus capable of easily executing a centering (center alignment) process and a cornering (corner alignment) process.
An image of a document A is read by a reading unit, document image data is created, and the created document image data is stored in a RAM. Next, the CPU reads out the centering processing program from the ROM and starts up. The user inputs coordinate information indicating the center position of the image of the document A from the operation display unit. Upon receiving the input of the center position information, the CPU calculates an image movement amount x1 and an image movement amount y1 such that the center position moves to the center of the transfer sheet B. Then, the CPU converts the document image data stored in the RAM based on the calculated values of the image movement amount x1 and the image movement amount y1. After the data conversion processing is completed, the CPU prints the document image data on the transfer paper B by the print output unit, and ends the processing.
[Selection] Fig. 2

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a digital copying apparatus equipped with a centering and cornering function capable of aligning a document image at the center or a corner of the transfer sheet when forming a document image read by a scanner device or the like on a transfer sheet. The present invention relates to an image processing device such as a multifunction device.
[0002]
[Prior art]
In recent years, digital copiers equipped with various functions, such as an aggregation function that aggregates and outputs a plurality of originals on a single transfer sheet and a scaling function that reduces or enlarges an original to a specified magnification and output the same, have been developed. Widespread.
By the way, among the functions installed in the digital copying apparatus, when forming an original image read by a scanner or the like on a transfer sheet, a centering / cornering function for aligning the original image at the center or the corner of the transfer sheet is adopted. , Has been adopted in more devices than before.
In the centering / cornering function, image processing is performed such that the entire range of the document is aligned with the center or the corner of the transfer paper. For this reason, the center point of the original image and the original range cannot be changed, and in the case of an original having a margin, it is easy to align the image excluding the margin with the center or corner of the transfer paper. could not.
[0003]
For example, when centering (centering) a document image excluding the blank portion of the document image, the user measures the size of the blank portion, calculates the amount of movement for centering the document image, and It was necessary to set a detailed image movement instruction. Specifically, in the vertical centering, the size of the upper margin and the lower margin is measured, and the difference between these margins is divided into two to calculate the amount of movement in the vertical direction. Similarly, the amount of movement in the left-right direction was calculated. Therefore, the measurement must be performed at a maximum of four locations and the calculation must be performed twice, which requires a lot of trouble for the user who performs the centering process.
Heretofore, a function has been proposed for solving the problem that occurs when an original including such a margin portion is copied onto transfer paper.
For example, Japanese Unexamined Patent Publication No. Hei 6-46240 discloses a trimming function for designating an unnecessary range on document image data, cutting this portion and laying out the image on transfer paper, and further applying a trimming image to which the trimming function is applied. There has been proposed an image shift function for moving the image and a scaling function for changing the size of the trimmed image.
[0004]
[Problems to be solved by the invention]
However, in the trimming function proposed in JP-A-6-46240, it is necessary to set coordinates of a plurality of points in order to specify an unnecessary image range. For example, in order to specify a rectangular range on a document image, coordinates indicating four vertices of the specified range had to be set.
Therefore, a first object of the present invention is to execute a centering process and a cornering (corner alignment) process easily based on information of a reference point by inputting an arbitrary single point on a document image as a reference point. It is an object of the present invention to provide an image processing apparatus capable of performing such processing.
[0005]
Further, a second object of the present invention is to read a document marked with a marker using an arbitrary single point on a document image as a reference point, thereby easily performing centering processing and information based on information of the reference point. An object of the present invention is to provide an image processing device capable of executing a cornering process.
Further, a third object of the present invention is to input an arbitrary singular point on a document image as a reference point, and further input an image scaling factor to perform centering processing and cornering processing based on the information of the reference point. It is an object of the present invention to provide an image processing apparatus capable of executing a scaling process for changing the size of a document image on image data subjected to.
[0006]
[Means for Solving the Problems]
According to the first aspect of the present invention, a creation unit that reads an original to create image data, a position information receiving unit that receives an input of position information of an arbitrary point existing on the original, and a position information receiving unit that receives the position information. An arithmetic unit for performing a predetermined arithmetic process on the image data created by the creating unit, based on the position information, and printing the image data on which the arithmetic process has been executed by the arithmetic unit on a transfer sheet, and outputting an output image. Image forming means for forming the image data, and wherein the predetermined arithmetic processing includes converting the converted value of the image data into the position information and the transfer sheet so that the image of the document is aligned with the center of the transfer sheet. The first object is achieved by an arithmetic process for calculating based on dimensional information.
[0007]
According to the second aspect of the present invention, a creation unit for reading an original to create image data, a position information receiving unit for receiving an input of position information of an arbitrary point present on the original, and a receiving unit for receiving the position information An arithmetic unit for performing a predetermined arithmetic process on the image data created by the creating unit, based on the position information, and printing the image data on which the arithmetic process has been executed by the arithmetic unit on a transfer sheet, and outputting an output image. Image forming means for forming the image data, wherein the predetermined arithmetic processing includes converting the converted value of the image data into the position information and the transfer sheet so that the image of the document is aligned with a corner of the transfer sheet. The first object is achieved by an arithmetic process for calculating based on dimensional information.
[0008]
According to a third aspect of the present invention, in the first or second aspect of the present invention, a document which has been subjected to a marking process using a predetermined marking means on an arbitrary point is read, and the position of the arbitrary point is read. Position information acquisition means for detecting position information of the arbitrary point by detecting the position information of the arbitrary point acquired by the position information acquisition means. Achieve the objectives.
According to a fourth aspect of the present invention, in the first, second or third aspect of the present invention, there is provided magnification ratio information receiving means for receiving an input of magnification ratio information indicating a magnification ratio of the document, and Performing predetermined arithmetic processing on the image data created by the creating means based on the position information received by the position information receiving means and the scaling information received by the scaling information receiving means. Thereby, the third object is achieved.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to FIGS.
FIG. 1 is a block diagram showing a schematic configuration of a digital copying apparatus according to the present embodiment.
As shown in FIG. 1, the digital copier includes a CPU (Central Processing Unit) 1, a ROM (Read Only Memory) 2, a RAM (Random Access Memory) 3, an operation display unit 4, a reading unit 5, It comprises a print output unit 6 and a storage unit 7, each of which is connected via a bus line 8.
[0010]
The CPU 1 is an arithmetic processing unit that performs image processing of the digital copying machine according to a predetermined program. More specifically, various functions can be exhibited by reading a program from a ROM 2 or a RAM 3 into a storage unit called a register and operating in accordance with the program.
The ROM 2 is a memory that stores various programs, data, parameters, and the like for the CPU 1 to perform various calculations and controls. The CPU 1 can read programs, data, parameters, and the like from the ROM 2, but generally does not rewrite or delete them.
The RAM 3 is a memory used as a working memory by the CPU 1. The CPU 1 can write and erase programs and data in the RAM 3.
[0011]
The operation display unit 4 includes an operation unit and a display unit. The operation unit includes a number input key, a function key, and the like, and a user performs data input using these keys. On the other hand, the display unit includes an LCD (Liquid Crystal Display) and a lamp, and displays various information of the digital copying apparatus. In addition, the display unit is provided with a pressure-sensitive or electrostatic touch panel, so that characters can be directly input on the display screen and menus can be selected.
The reading unit 5 includes a scanner device using a CCD (charge coupled device) or a contact sensor, an A / D (analog / digital) conversion unit, an image processing unit, and the like, and reads an image of a document at a predetermined resolution. The image data is output as a digital signal.
The print output unit 6 includes a printer for outputting image data processed by the digital copying apparatus to transfer paper.
The storage unit 7 is configured by a storage device that stores image data of a document read by the reading unit 5.
[0012]
Next, the operation of the digital copying apparatus thus configured will be described.
As shown in FIG. 2, an image of a document A (size H1 × L1) having a margin portion (left margin a, upper margin b, right margin c, lower margin d) is transferred to transfer paper B (size H2 × L2). ), A method of centering the center of the image excluding the margin at the center of the transfer paper B will be described.
The size of the document A and the size of the transfer paper B may be the same size or different sizes. It is assumed that the size of the document A and the size of the transfer paper B are the standard size.
[0013]
First, the reading section 5 reads an image of the document A, creates document image data, and stores the created document image data in the RAM 3.
Next, the user selects the centering function from the operation display unit 4. When receiving the selection of the centering function specified by the user, the CPU 1 reads out the centering processing program from the ROM 2 and starts the program.
Then, the user measures the coordinates (e, f shown in FIG. 3) indicating the center position of the image of the document A with a ruler or the like, and inputs the measurement result from the operation display unit 4. Here, the center position of the image of the document A is set as a reference point for executing the centering process.
[0014]
When receiving the input of the center position information, the CPU 1 calculates the image movement amount x1 and the image movement amount y1 such that the center position (reference point) moves to the center of the transfer sheet B based on the following calculation formula. . The image movement amount x1 indicates the movement amount of the document image in the x-axis direction, and the image movement amount y1 indicates the movement amount of the document image in the y-axis direction.
Image movement amount x1 = L2 / 2−e
Image movement amount y1 = H2 / 2−f
Then, the CPU 1 converts the image data of the document A stored in the RAM 3 based on the calculated values of the image movement amount x1 and the image movement amount y1. After the data conversion processing is completed, the CPU 1 prints the document image data on the transfer paper B by the print output unit 6, and ends the processing.
[0015]
Next, as shown in FIG. 4, an image of the original A (size H1 × L1) having a margin portion (left margin a, upper margin b, right margin c, lower margin d) is transferred to a transfer sheet B (size H1 × L1). A method of cornering an image corner (upper right corner) excluding a margin to a corner (upper right corner) of the transfer paper B when transferring to (H2 × L2) will be described.
It should be noted that a description of a portion that is the same as the description of the centering process described above is omitted.
[0016]
The user selects a cornering function from the operation display unit 4. When receiving the selection of the cornering function specified by the user, the CPU 1 reads out the cornering processing program from the ROM 2 and activates it.
Then, the user measures the coordinates (g, b shown in FIG. 5) indicating the upper right vertex of the image of the document A with a ruler or the like, and inputs the measurement result from the operation display unit 4. Here, the upper right vertex of the image of the document A is set as a reference point for executing the cornering process.
[0017]
When receiving the input of the upper right vertex information, the CPU 1 calculates the image moving amount x2 and the image moving amount y2 such that the upper right vertex (reference point) moves to the upper right vertex of the transfer sheet B based on the following calculation formula. I do.
Image movement amount x2 = L2-g
Image movement amount y2 = -b
Then, the CPU 1 converts the image data of the document A stored in the RAM 3 based on the calculated values of the image movement amount x2 and the image movement amount y2. After the data conversion processing is completed, the CPU 1 prints the document image data on the transfer paper B by the print output unit 6, and ends the processing.
[0018]
Next, the transfer paper is changed by changing the magnification of the image of the original A (size H1 × L1) having the margins (left margin a, upper margin b, right margin c, lower margin d) as shown in FIG. B (size H2 × L2), and a method of centering the center of the document image at the center of the transfer paper B when transferring is described.
The user selects the scaling / centering function from the operation display unit 4. Upon receiving the selection of the scaling / centering function specified by the user, the CPU 1 reads the scaling / centering processing program from the ROM 2 and starts up.
Then, the user inputs an arbitrary scaling factor n and coordinates (e, f shown in FIG. 7) indicating the center position of the image of the document A from the operation display unit 4. Here, the center position of the image of the document A is set as a reference point for executing the scaling / centering processing.
[0019]
When the CPU 1 receives the input of the scaling factor n information and the center position information, the CPU 1 moves the document image having the scaling factor n with the center position as a reference point to the center of the transfer sheet B and the image movement amount x3. The movement amount y3 is calculated based on the following calculation formula.
Image movement amount x3 = L2 / 2−e × n
Image movement amount y3 = H2 / 2−f × n
Then, the CPU 1 converts the image data of the document A stored in the RAM 3 based on the calculated values of the image movement amount x3 and the image movement amount y3. After the data conversion processing is completed, the CPU 1 prints the document image data on the transfer paper B by the print output unit 6, and ends the processing.
[0020]
Next, as shown in FIG. 8, the transfer paper is changed by changing the magnification of the image of the original A (size H1 × L1) having the margins (left margin a, upper margin b, right margin c, lower margin d). B (size H2 × L2), and a method of cornering the corner (upper right corner) of the image of the document image to the corner (upper right corner) of the image of the transfer paper B at the time of transfer will be described.
The user selects the scaling / cornering function from the operation display unit 4. When the CPU 1 receives the selection of the scaling / cornering function specified by the user, the CPU 1 reads out the scaling / cornering processing program from the ROM 2 and starts up.
Then, the user inputs an arbitrary scaling factor n and coordinates (g, b shown in FIG. 9) indicating the upper right vertex of the image of the document A from the operation display unit 4. Here, the upper right vertex of the image of the document A is set as a reference point for executing the scaling / cornering process.
[0021]
When the CPU 1 receives the input of the scaling factor n information and the upper right vertex information, the CPU 1 moves the original image of the scaling factor n with the upper right vertex as a reference point to the upper right vertex of the transfer paper B and the image movement amount x4. The movement amount y4 is calculated based on the following calculation formula.
Image movement amount x4 = L2-g × n
Image movement amount y4 = −b × n
Then, the CPU 1 converts the image data of the document A stored in the RAM 3 based on the calculated values of the image movement amount x4 and the image movement amount y4. After the data conversion processing is completed, the CPU 1 prints the document image data on the transfer paper B by the print output unit 6, and ends the processing.
[0022]
In the above-described embodiment, when the centering process and the cornering process are performed, the user is caused to measure the reference point, and the measurement result is input from the operation display unit 4 as the reference point coordinates. As a method of causing the digital copying apparatus to recognize the reference point coordinates, the following method may be used.
Marking (marking) processing is performed in advance on a position serving as a reference point on the document A using a marker pen, and the document A on which the marking processing is performed is read by the reading unit 5. At this time, the reading unit 5 detects a marking portion separately from the image of the document A.
Then, the CPU 1 acquires the position information of the detected marking location, and uses the acquired position information as a reference point when executing the centering process and the cornering process.
In this manner, the reference point can be automatically recognized by the digital copying apparatus only by performing the marking process on the document A.
Since the marker pen used in the marking process uses a special fluorescent pigment, the mark described by the marker pen is not recognized as image data.
[0023]
【The invention's effect】
According to the first aspect of the present invention, it is possible to provide an image processing apparatus that can easily form an image on which centering processing has been performed by performing arithmetic processing based only on position information.
According to the second aspect of the present invention, it is possible to provide an image processing apparatus capable of easily forming a corner-aligned image by performing an arithmetic process based on only position information.
According to the third aspect of the present invention, a target image can be formed without performing complicated information input processing by detecting points where the marking processing has been performed using the predetermined marking means. An image processing device can be provided.
According to the fourth aspect of the present invention, it is possible to provide an image processing apparatus capable of easily forming an output image having a size different from that of a document image by performing arithmetic processing based on position information and scaling information.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a schematic configuration of a digital copying apparatus according to an embodiment.
FIG. 2 is an explanatory diagram of a method of centering a document A on the center of a transfer sheet B.
FIG. 3 is an explanatory diagram of a method of centering a document A at the center of a transfer sheet B.
FIG. 4 is an explanatory diagram of a method of cornering a document A at a corner of a transfer sheet B;
FIG. 5 is an explanatory diagram of a method of cornering a document A at a corner of a transfer sheet B;
FIG. 6 is an explanatory diagram of a method of scaling an image of an original A and centering the image on a center of a transfer sheet B;
FIG. 7 is an explanatory diagram of a method of scaling an image of an original A and centering the image on a center of a transfer sheet B;
FIG. 8 is an explanatory diagram of a method of scaling an image of an original A and cornering the corner of a transfer sheet B;
FIG. 9 is an explanatory diagram of a method of scaling an image of a document A and cornering the corner of a transfer sheet B;
[Explanation of symbols]
1 CPU
2 ROM
3 RAM
4 operation display unit 5 reading unit 6 print output unit 7 storage unit 8 bus line

Claims (4)

Creating means for reading an original and creating image data;
Position information receiving means for receiving an input of position information of an arbitrary point present on the document,
An arithmetic unit for performing a predetermined arithmetic process on the image data created by the creating unit based on the position information received by the position information receiving unit;
Image forming means for printing the image data subjected to the arithmetic processing by the arithmetic means on transfer paper, and forming an output image,
The predetermined calculation process is a calculation process of calculating a conversion value of the image data based on the position information and the size information of the transfer sheet so that the image of the document is aligned with the center of the transfer sheet. An image processing apparatus, comprising: Creating means for reading an original and creating image data;
Position information receiving means for receiving an input of position information of an arbitrary point present on the document,
An arithmetic unit for performing a predetermined arithmetic process on the image data created by the creating unit based on the position information received by the position information receiving unit;
Image forming means for printing the image data subjected to the arithmetic processing by the arithmetic means on transfer paper, and forming an output image,
The predetermined calculation process is a calculation process of calculating a conversion value of the image data based on the position information and the size information of the transfer sheet so that the image of the document is aligned with a corner of the transfer sheet. An image processing apparatus, comprising: A position information acquisition unit that reads a document on which a marking process has been performed on an arbitrary point by using a predetermined marking unit, detects a position of the arbitrary point, and acquires position information of the arbitrary point; ,
The image processing apparatus according to claim 1, wherein the position information receiving unit receives the position information of the arbitrary point acquired by the position information acquiring unit. A magnification ratio information receiving unit that receives an input of magnification ratio information indicating the magnification ratio of the document,
The calculating means performs a predetermined calculation on the image data created by the creating means based on the position information received by the position information receiving means and the scaling information received by the scaling information receiving means. 4. The image processing apparatus according to claim 1, wherein processing is performed.

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