JP2014199975A - Program, loading position determination method, and loading position determination device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a program, a placement position determination method, and a placement position determination device capable of determining whether or not a placement position of a sheet placed on a paper feed tray is appropriate. A control unit 210 of a computer device 200 inputs an input unit 271 that inputs a read image including an image on a predetermined sheet read by a scanner device 100 that reads an image with a predetermined reading width, and an input unit 271 inputs the input image. In the read image, the detection unit 272 detects an abnormal state when there are a plurality of rows or columns in which the positions where the black pixels continuous from the end of the read image are not at the predetermined position corresponding to the predetermined sheet exist. To do. [Selection] Figure 8

Description

  The present invention relates to a program, a mounting position determination method, and a mounting position determination apparatus.

In a financial institution such as a bank, in order to perform computer processing on information written on paper such as a form, a paper is read and digitized by a scanner device. Since there are a plurality of types of paper such as a form, the scanner device needs to process a plurality of types of paper having different sizes.
Also, with some paper such as exchange slips, after the image is read, the scanner device prints a serial number on the paper. The serial number is printed in order to prevent, for example, double reading. For this reason, the sheets processed by the scanner device include sheets on which serial numbers are printed and sheets on which serial numbers are not printed.

  Patent Document 1 discloses a technique for detecting a document placement failure. Patent Document 2 discloses a technique for automatically determining an appropriate image reading width. Patent Document 3 discloses a technique for adjusting the position of an image to be printed on paper. Patent Document 4 discloses a technique related to a paper guide for a paper feed tray.

JP-A-8-97975 JP-A-8-254407 JP 60-123873 A JP 2004-352463 A

  However, the paper processed by the scanner device has a plurality of sizes, and there are paper that prints serial numbers and paper that does not print. For this reason, the placement position on the paper feed tray on which the paper before scanning is placed is set according to the paper size and whether or not serial number printing is performed. Therefore, if the position on the paper feed tray on which the paper is placed is incorrect, for example, the serial number is not printed on the paper on which the serial number is to be printed, and the time and labor required for computer processing of the image of the paper read by the scanner device increases. Occurs.

  In one aspect, the present invention provides a program, a placement position determination method, and a placement position determination device that can determine whether or not the placement position of a sheet placed on a paper feed tray is appropriate. Objective.

  In one embodiment, the program inputs to the computer an input procedure for inputting a read image including an image on a predetermined sheet read by a scanner device that reads an image with a predetermined reading width, and the read image input in the input procedure. A detection procedure for detecting an abnormal state when there are a plurality of rows or columns where the positions where the black pixels continuous from the edge of the read image are not at the predetermined positions corresponding to the predetermined paper are present. .

  In one embodiment, the placement position determination method includes an input step of inputting a read image including an image of a predetermined sheet read by a scanner device that reads an image with a predetermined reading width, and the reading input by the input step. A detection step of detecting an abnormal state when there are a plurality of rows or columns where the black pixels that are continuous from the edge of the scanned image are not at a predetermined position corresponding to the predetermined paper. doing.

  In one embodiment, the placement position determination device includes an input unit that inputs a read image including an image on a predetermined sheet read by a scanner that reads an image with a predetermined reading width, and the reading that is input by the input unit. A detecting unit configured to detect an abnormal state when there are a plurality of rows or columns where black pixels that are continuous from the edge of the read image are not at predetermined positions corresponding to the predetermined paper in the image; .

  It is possible to determine whether or not the placement position of the paper placed on the paper feed tray is appropriate.

It is a figure which shows an example of a system configuration. (A) is a perspective view showing an example of a paper feed unit, (B) is a plan view showing an example of a paper feed unit. FIG. 7A is a plan view illustrating an example of a paper feed unit, in which (A) shows a state in which the left side guide is moved to the left end of the paper feed tray and the right side guide is moved to an intermediate position in the width direction of the paper feed tray. (B) is a diagram showing a state in which the left and right side guides are respectively moved to intermediate positions in the width direction of the paper feed tray. It is a figure which shows an example of the hardware with which a scanner apparatus is provided. (A) is a diagram in which the paper feed unit, the conveyance unit, the reading unit, and the printing unit are arranged in the conveyance direction in the order of processing, and (B) is a diagram illustrating an example of image data read by the reading unit. FIG. 8C is a diagram illustrating an example of a form ejected from the scanner device. (A) is a diagram in which the paper feed unit, the conveyance unit, the reading unit, and the printing unit are arranged in the conveyance direction in the order of processing, and (B) is a diagram illustrating an example of image data read by the reading unit. FIG. 8C is a diagram illustrating an example of a form ejected from the scanner device. It is a figure which shows an example of the hardware with which a computer apparatus is provided. It is a figure which shows an example of the functional block with which the control part of a computer apparatus is provided. (A) shows an example in which a document is placed at a regular position on the paper feed tray where the scanner device can normally perform the first process, and (B) shows the form brought to the right end of the paper feed tray. FIG. 4C shows an example in which the paper is placed horizontally, FIG. 6C shows an example in which the paper is placed vertically in the center portion of the paper feed tray, and FIG. . (A) shows an example in which a form is placed at a regular position on the paper feed tray where the scanner device can perform the second processing normally, and (B) shows the form brought to the left end of the paper feed tray. (C) shows an example in which a form is brought to the left end of the paper feed tray and placed vertically, and (D) shows an example in which the form is placed in a horizontal position by bringing it to the left end of the paper feed tray. is there. 2A and 2B are diagrams illustrating an example of a read image read by a scanner device, where FIG. 1A illustrates an example in which black images are evenly added to both ends in the width direction of a form image, and FIG. 2B illustrates black on the left side of the form image. It is a figure which shows the case where the area of an image becomes larger than the area of the black image on the right side. It is a figure which shows a mode that the position of the length direction of the read image which counts the number of black pixels is changed, and the number of black pixels is counted in a plurality of positions. (A) is a diagram showing the first left threshold and the first right threshold so that they can be compared with the left edge and right edge of the read image, and (B) feeds a form. FIG. 4C is a diagram illustrating an example of a read image when the paper is placed side by side toward the right end of the tray, and FIG. 8C is a diagram illustrating an example of a read image when the form is placed side by side toward the left end of the paper feed tray. (A) is a figure which shows typically a mode that the number of black pixels is counted in the both ends of the width direction of a read image, (B) is the number of black pixels of each line of a to f shown in (A). It is a figure which shows a counting result. (A) is a diagram showing the second left threshold value and the second right threshold value so that they can be compared with the left end portion and the right end portion of the read image, and (B) shows the form in the paper feed tray. FIG. 6C is a diagram illustrating an example of a read image when the paper is vertically placed close to the left end of the sheet, and FIG. 8C is a diagram illustrating an example of a read image when the form is horizontally placed while being close to the left end of the paper feed tray. (A)-(E) is a figure for demonstrating an example of the method of compressing an image and removing a noise. It is a flowchart which shows an example of the process sequence of the control part of a computer apparatus. It is a flowchart which shows an example of the process sequence of the control part of a computer apparatus, and is a figure which shows the continuation of the flow shown in FIG. It is a figure which shows an example of the detailed flow of abnormality determination of the form set position shown to S11 of FIG.

  Hereinafter, embodiments will be described in detail with reference to FIGS.

  First, an example of the system configuration of this embodiment will be described with reference to FIG. FIG. 1 shows an example of the system configuration of this embodiment. The present embodiment includes a scanner device 100 and a computer device 200. The scanner device 100 and the computer device 200 are connected by a cable 300, and image data read by the scanner device 100 is sent from the scanner device 100 to the computer device 200 via the cable 300. The computer device 200 performs processing such as character recognition on the image data sent from the scanner device 100, digitizes the image data, and stores the digitized image data in a storage device included in the computer device 200.

Next, the scanner device 100 will be described. First, the paper feeding unit 160 attached to the scanner device 100 will be described with reference to FIGS. 2A shows a perspective view of the paper feed unit 160, and FIG. 2B shows a plan view of the paper feed unit 160. As shown in FIG. 3A and 3B are plan views of the paper feeding unit 160, and the positions of the side guides 162 and 163 included in the paper feeding unit 160 are shown in FIG. 2B. The positions of the guides 162 and 163 indicate the changed ones. In the following, a form is taken as an example of paper, and a case where a form is set in the paper feeding unit 160 and an image of the form is read will be described as an example.
The paper feed unit 160 includes a paper feed tray 161 and a pair of side guides 162 and 163. The paper feed tray 161 has a placement surface M, and a document for scanning an image is placed on the placement surface M. In addition, a pair of guide grooves 165 and 166 facing the direction orthogonal to the transport direction are formed at the center of the paper feed tray 161 in the transport direction. A direction in which a form set on the paper feed tray 161 is conveyed to a reading unit (described later) of the scanner device 100 is referred to as a conveyance direction, and a direction orthogonal to the conveyance direction is referred to as a width direction. Projections (not shown) provided on the side guides 162 and 163 are fitted into the pair of guide grooves 165 and 166 so that the side guides 162 and 163 can move in the width direction. FIG. 3A shows a state in which the left side guide 162 is set at the left end of the guide groove 165 and the right side guide 163 is moved to an intermediate position of the guide groove 166. FIG. 3B shows a state in which the left and right side guides 162 and 163 are moved to intermediate positions of the guide grooves 165 and 166, respectively. The side guides 162 and 163 regulate the movement of the form placed on the placement surface M so that the form is conveyed to a reading position of a reading unit (described later) of the scanner device 100. The guide grooves 165 and 166 are provided with members (not shown) for fixing the side guides 162 and 163 set at the left end, middle, and right end positions, for example.

  Next, hardware included in the scanner device 100 will be described with reference to FIG. FIG. 4 shows an example of hardware included in the scanner device 100. The scanner device 100 includes a controller 110, an input / output unit 120, a conveyance unit 130, a reading unit 140, and a printing unit 150. The controller 110, the input / output unit 120, the transport unit 130, the reading unit 140, and the printing unit 150 are connected to the bus 170.

  The controller 110 includes a control unit 111 and a memory 112, and controls the scanner device 100. The control unit 111 receives command data transmitted from the computer device 200 and controls each unit of the scanner device 100 according to the received command data. The memory 112 stores a control program used by the control unit 111 for control. In addition, the image data of the form read by the reading unit 140 is stored in the memory 112. The control unit 111 reads out the image data stored in the memory 112 and transmits it to the computer apparatus 200.

  The input / output unit 120 is an interface unit with the computer apparatus 200 connected by the cable 300. The input / output unit 120 transmits the image data read from the memory 112 to the computer apparatus 200 via the cable 300 under the control of the control unit 111. Further, the input / output unit 120 sends command data received from the computer apparatus 200 via the cable 300 to the control unit 111.

Next, the conveyance unit 130, the reading unit 140, and the printing unit 150 will be described with reference to FIGS. 5A and 6A are diagrams in which the respective units of the paper feeding unit 160, the conveyance unit 130, the reading unit 140, and the printing unit 150 are arranged in the conveyance direction of the document in the order of processing. 5B and 6B show an example of image data read by the reading unit 140. FIG. 5C and 6C show examples of forms ejected from the scanner device 100. FIG.
The transport unit 130 includes transport rollers 131 and 132, and feeds the forms placed on the paper feed tray 161 of the paper feed unit 160 one by one by the transport rollers 131 and 132 and transports them to the reading unit 140. The transport rollers 131 and 132 are provided at the center in the width direction of the paper feed tray 161.

  The reading unit 140 includes a reading sensor (not shown), and reads an image of the form conveyed by the conveying unit 130 by the reading sensor. The image data read by the reading unit 140 is sent to the control unit 111 and stored in the memory 112 under the control of the control unit 111. 5B and 6B show an example of image data read by the reading unit 140. FIG. The reading unit 140 reads an image of a form with a certain reading width. That is, the reading unit 140 reads an image with a constant reading width even when the size of the form placed on the paper feed tray 161 is changed. The reading unit 140 reads a portion other than the form and outputs a black image as a background image.

  The printing unit 150 includes a print head 155 and prints a serial number on a form after an image is read by the reading unit 140. The print head 155 is provided at the left end in the width direction of the paper feed tray 161 as shown in FIGS. 5 (A) and 6 (A). Therefore, when the side guide 162 is moved to the left end, the side guide 163 is moved to the intermediate position of the guide groove 166, and the form is moved to the left end of the paper feed tray 161 and placed, as shown in FIG. The serial number is printed on the form. Further, as shown in FIG. 6A, when the left and right side guides 162 and 163 are moved to the intermediate positions of the guide grooves 165 and 166 and the form is placed at the center of the paper feed tray 161, As shown in FIG. 6C, the serial number is not printed on the form.

  Here, two processes executed by the scanner device 100 will be described. The scanner device 100 executes two patterns of processing, that is, first processing and second processing. The first process is a process in which an image of a form placed on the paper feed tray 161 is read by the reading unit 140 and a serial number is printed on the form. The second process is a process in which the image of the form placed on the paper feed tray 161 is read by the reading unit 140 and the serial number is not printed on the form. When the scanner device 100 executes the first process, as shown in FIG. 5A, the side guide 162 is moved to the left end, and the side guide 163 is moved to an intermediate position of the guide groove 166. The form is placed between the side guide 162 and the side guide 163, that is, close to the left end of the paper feed tray 161. When the scanner apparatus 100 is to execute the second processing, as shown in FIG. 6A, the left and right side guides 162 and 163 are moved to the intermediate positions of the guide grooves 165 and 166, and the form is moved. It is placed on the central portion of the paper feed tray 161.

Next, the computer apparatus 200 will be described with reference to FIG. FIG. 7 shows an example of hardware included in the computer apparatus 200.
The computer device 200 includes a control unit 210. The control unit 210 includes a CPU (Central Processing Unit) 211, a ROM (Read Only Memory) 212, and a RAM (Random Access Memory) 213. The ROM 212 stores a control program used by the CPU 211 for control. The CPU 211 reads the control program from the ROM 212 or the hard disk device (hereinafter referred to as HDD) 250 and stores it in the RAM 213. Thereafter, the CPU 211 performs processing (calculation) according to the control program stored in the RAM 213. The RAM 213 is used as a work memory of the CPU 211, and stores data used by the CPU 211 for calculation, data after calculation by the CPU 211, and the like. Functional blocks realized by cooperation of hardware such as the CPU 211 and RAM 213 and the control program will be described later with reference to FIG.

  The computer device 200 includes an input device 221 and an input / output interface (hereinafter, the interface is abbreviated as I / F) 222. The input device 221 is an input device such as a mouse or a keyboard. When the input device 221 is operated by the user, the input device 221 sends operation information indicating the received operation content to the control unit 210 via the input / output I / F 222. The input / output I / F 222 is connected to the scanner device 100 and the input device 221. The input / output I / F 222 is connected to the bus 260. The input / output I / F 222 receives image data from the scanner device 100 and sends the input image data to the control unit 210 via the bus 260. The input / output I / F 222 receives operation information from the input device 221 and sends the input operation information to the control unit 210 via the bus 260. Further, the input / output I / F 222 sends command data input from the CPU 211 to the scanner device 100.

  The computer device 200 includes a graphic I / F 232 and a display device 231. The graphic I / F 232 is connected to the bus 260 and the display device 231. The graphic I / F 232 is an interface for causing the display device 231 to display graphic data processed by the control unit 210. The graphic I / F 232 converts the graphic data received from the control unit 210 into a waveform electric signal and sends it to the display device 231. For example, the display device 231 displays image data read by the scanner device 100 on the display screen of the display device 231 under the control of the control unit 210.

  The computer device 200 includes a network I / F 240. The network I / F 240 is connected to a bus 260 and a network 400 such as a LAN (Local Area Network). The network I / F 240 inputs data sent from the control unit 210 and transmits the input data to other computer devices connected to the network 400. In addition, the network I / F 240 sends data received from another computer device via the network 400 to the control unit 210.

  The computer device 200 includes an HDD 250. The HDD 250 stores a control program used by the CPU 211 for control, image data read by the scanner device 100, and a determination threshold value used for determination of a form set position described later.

Next, the functional block 270 will be described with reference to FIG. The function block 270 is a block in which processes realized by cooperation of hardware such as the CPU 211 and the RAM 213 of the control unit 210 and the control program are grouped for each function realized by a series of processes. The computer apparatus 200 includes an input unit 271, a detection unit 272, and a display control unit 273 as the function block 270.
The input unit 271 inputs image data including a form image (hereinafter referred to as a read image) read by the scanner device 100 that reads an image with a predetermined reading width. In the read image input by the input unit 271, the detection unit 272 detects an abnormal state when there are a plurality of rows or columns in which the positions where the continuous black pixels from the end of the read image are not a predetermined position corresponding to the form exist. Detect as. The display control unit 273 displays the read image input by the input unit 271 on the display device 231. In addition, when the detection unit 272 detects an abnormal state, the display control unit 273 displays on the display screen of the display device 231 that the placement position of the form placed on the paper feed tray 161 is not correct. Hereinafter, the input unit 271, the detection unit 272, and the display control unit 273 will be described in detail.

  The input unit 271 inputs image data (hereinafter referred to as a read image) transmitted from the scanner device 100 via the input / output I / F 222. The input unit 271 stores the input read image in the RAM 213. The display control unit 273 displays the read image stored in the RAM 213 on the display screen of the display device 231. In addition, the display control unit 273 displays the determination result of the form set position performed by the detection unit 272 on the display screen of the display device 231. The details of the determination of the form set position will be described in detail in the following description of the detection unit 272.

Whether the detection unit 272 has read the read image from the RAM 213 and has read the image of the form set at the regular position on the paper feed tray 161 that allows the scanner apparatus 100 to normally perform the first process or the second process. Determine whether or not. This determination is called determination of the form set position. In the determination of the form set position, an abnormal state is detected when there are a plurality of rows or columns where the positions where the black pixels continuous from the edge of the read image are not at the predetermined positions corresponding to the form exist. Details of the processing for determining the form set position will be described with reference to FIGS. 9 and 10 show a state in which a form is placed on the paper feed tray 161. FIG.
FIG. 9A shows an example in which a document is placed at a position on the paper feed tray 161 where the scanner apparatus 100 can normally perform the first process. 9B to 9D show the placement of a form that the detection unit 272 detects as an abnormal state in the form set position determination process when the process of the scanner apparatus 100 is the first process. An example of the position is shown. Note that the abnormal state refers to a case where the detection unit 272 determines that a form is set at a position where the scanner apparatus 100 cannot normally perform the first process or the second process. FIG. 9B shows an example in which a form is placed near the right end of the paper feed tray 161. In FIG. 9C, the form is not placed sideways (hereinafter referred to as landscape orientation) so that the long side of the form faces in the width direction as shown in FIG. It shows how to place a form vertically (hereinafter referred to as “vertical”). Further, in the case of FIG. 9C, the position where the form is placed is not the left end of the paper feed tray 161 but the center portion. FIG. 9D shows an example in which the form is placed in the same manner as FIG. 9C and is placed close to the left end of the paper feed tray 161. In the case of the form placement shown in FIGS. 9B and 9C, since the form does not pass under the print head 155 when read by the scanner device 100, the serial number is not printed on the form. In the example of the form placement shown in FIG. 9D, the serial number can be printed on the form. However, since the form is placed vertically rather than horizontally, the serial number is placed at a predetermined position on the form. Cannot be printed.

Next, a case where the process of the scanner device 100 is the second process will be described. FIG. 10A shows an example in which a document is placed at a regular position on the paper feed tray 161 where the scanner apparatus 100 can normally perform the second process. In the case of the second process, the side guides 162 and 163 are set at intermediate positions of the guide grooves 165 and 166, respectively, and the form is placed on the central portion of the paper feed tray 161. Note that the correct position on the paper feed tray 161 where the scanner apparatus 100 can normally perform the second process is not limited to the central portion of the paper feed tray 161 shown in FIG. For example, the form may be placed near the right end of the paper feed tray 161 or may be placed near the left end of the paper feed tray 161. However, in the present embodiment, the case where the form is placed on the central portion of the paper feed tray 161 shown in FIG. This is to unify images sent from the scanner device 100 to the computer device 200 when the processing of the scanner device 100 is the second processing. That is, since the scanner apparatus 100 reads a form image with a constant reading width, a black image is added around the form image. When a form is placed in the central portion of the paper feed tray 161, black images are evenly added to the left and right of the form image as shown in FIG. On the other hand, when a form is placed on the right end of the paper feed tray 161, the area of the black image on the left side of the form image is larger than the area of the black image on the right side as shown in FIG. That is, if the position of the form image in the read image is different, a processing burden is imposed on the computer device 200 that processes the read image. For this reason, the case where the form is placed in the central portion of the paper feed tray 161 shown in FIG.
FIGS. 10B to 10D show examples of the placement positions of the forms that are detected by the detection unit 272 when the process of the scanner device 100 is the second process. FIG. 10B shows an example in which a form is placed horizontally on the paper feed tray 161 and the form is placed near the left end of the paper feed tray 161. FIG. 10C shows an example in which a form is placed vertically on the paper feed tray 161 and the form is placed near the left end of the paper feed tray 161 as in FIG. 10B. FIG. 10D illustrates an example in which a form is placed horizontally on the paper feed tray 161 and the form is placed near the right end of the paper feed tray 161.

  The detection unit 272 detects that the user has placed the form in the wrong position / direction on the paper feed tray 161 using the read image read by the reading unit 140. First, the detection unit 272 determines whether the scanner device 100 is set to the first process or the second process based on the operation information input from the input device 221. When the process of the scanner device 100 is the first process, the detection unit 272 determines the black image width for the read image using the determination threshold prepared for the first process, and forms the form set. Determine the position. Further, when the detection unit 272 determines that the process of the scanner device 100 is the second process, the detection unit 272 determines the black image width for the read image using the determination threshold prepared for the second process. Go and determine the form set position. The determination of the black image width will be described later.

  The determination threshold value is a threshold value used for determining that the form image is not at a predetermined position in the width direction of the read image, and includes a first processing threshold value for determining the first process, and a second threshold value. There is a second processing threshold value for determining processing. The first processing threshold value includes a left edge determination threshold value (hereinafter abbreviated as first left threshold value) and a right edge determination threshold value (hereinafter referred to as first right threshold value). (Abbreviated). Similarly, the second processing threshold value includes a left edge determination threshold value (hereinafter abbreviated as a second left threshold value) and a right edge determination threshold value (hereinafter referred to as a second right threshold value). (Abbreviated).

  Next, determination of the black image width in the first process will be described. The detection unit 272 first counts the number of black pixels that are continuous from the end of the read image. Since the reading unit 140 reads an image with a constant reading width, the reading unit 140 also reads an image of a part other than the form and outputs it as a black image as a background image. Further, the edge of the form image is a white pixel. For this reason, the detection unit 272 counts the number of black pixels continuous from the left end of the read image in the width direction of the read image until a white pixel is detected in the width direction of the read image. When the detection unit 272 detects a white pixel, the detection unit 272 determines that it is the end of the form image and ends the counting of the number of black pixels. Similarly, the detection unit 272 also counts the number of black pixels in the width direction of the read image from the right end of the read image on the right end side of the read image. Note that the counting of the number of black pixels from the edge of the read image to the edge of the form image is performed by changing the position in the length direction orthogonal to the width direction of the read image as shown in FIG. FIG. 12 shows how the number of black pixels is counted at each position by changing the position in the length direction to be counted. For example, the detection unit 272 counts the number of black pixels from the end of the read image to the end of the form image in each line in the width direction (row direction) a to k shown in FIG. In addition, since a form image does not exist in the lines a, b, j, and k shown in FIG. 12, a white image cannot be detected in each line a, b, j, and k. Therefore, when the number of black pixels to be counted exceeds a predetermined value, the detection unit 272 determines that there is no form image and stops counting the number of black pixels. In FIG. 12, for convenience of explanation, the background portion other than the form image is also shown as a white image. FIG. 12 shows an example in which the detection unit 272 counts black pixels continuous in the width direction from the end in the width direction of the read image. In addition to this, for example, the detection unit 272 counts black pixels continuous in the length direction from the end in the direction perpendicular to the width direction of the read image, that is, the length direction (column direction). May be. In the present embodiment, the case where the position on the paper feed tray 161 on which the form is placed is changed in the width direction between the first process and the second process is described as an example. The black pixels continuous in the width direction are counted from the end in the width direction. However, when the placement position of the form on the paper feed tray 161 is changed in the conveyance direction of the paper feed tray 161, it continues from the end in the length direction (row direction) of the read image in the length direction. A black pixel may be counted.

  Next, the detection unit 272 compares the counted value of the left black pixel with the first left threshold value, and sets the form at the correct position on the paper feed tray 161 corresponding to the first process. It is determined whether or not it has been done. That is, the detection unit 272 determines whether or not the end image is at a predetermined position in the width direction of the read image. The detection unit 272 detects an abnormal state when the end image is not at a predetermined position in the width direction of the read image. Similarly, the detection unit 272 compares the counted value of the black pixel on the right side with the first right threshold value, and sets the form at the correct position on the paper feed tray 161 corresponding to the first process. It is determined whether or not it has been done. The determination threshold is defined by the number of pixels of the black image from the edge of the read image to the edge of the form image read when the form is set at the correct position on the paper feed tray 161, that is, the number of black pixels. Is done. However, even if the form is set at the correct position, the number of measured black pixels includes an error. Therefore, for example, a value obtained by adding or subtracting a predetermined value to the average value of the number of black pixels measured several times may be used as the threshold value. A value indicating a range may be used as the threshold value. For example, a range obtained by adding and subtracting a predetermined number of pixels to the average value of the number of black pixels measured several times is determined as a normal range, and a case outside this normal range can be determined as abnormal.

FIG. 13A shows the first left threshold value and the first right threshold value so that they can be compared with the left end portion and the right end portion of the read image. FIG. 13B shows a read image when the form is placed side by side on the right end of the paper feed tray 161. FIG. 13C shows a read image when the form is placed vertically on the left end of the paper feed tray 161. In FIGS. 13B and 13C, for convenience of explanation, the background portion other than the form image is also shown as a white image.
The first left threshold is set to the number of black pixels corresponding to the distance from the left end of the read image to the position of the print head 155 of the print unit 150. That is, when the number of black pixels counted by the detection unit 272 exceeds the number of pixels corresponding to the distance from the left end of the read image to the position of the print head 155, the detection unit 272 detects an abnormal state. For example, in the case of the read image shown in FIG. 13B, the count value of black pixels from the left end portion of the read image to the left end portion of the form image is larger than the first left threshold value. In the case of the read image shown in FIG. 13C, the count value of black pixels from the right end portion of the read image to the right end portion of the form image is larger than the first right threshold value. The detection unit 272 detects an abnormality when the count value of the left black pixel is larger than the first left threshold value. Similarly, the detection unit 272 detects an abnormality when the count value of the right black pixel is larger than the first right threshold value.

  Next, detection of the edge of the form image will be described with reference to FIG. The detection unit 272 starts counting the number of black pixels from the left end of the read image, and counts black pixels until a white pixel is detected in the width direction of the read image. However, there are cases where the form image is dirty and the edge of the form image cannot be detected correctly. FIG. 14A shows how the detection unit 272 counts the number of black pixels in each line in the width direction from a to f. Among the lines a to f, the left side of the a line and the right side of the e line indicate a case where the edge of the form image cannot be correctly detected due to contamination. In order to eliminate the influence of such dirt (noise), a threshold for preventing erroneous detection is provided in this embodiment. For example, the read width of the read image read by the scanner device 100 is constant. The detection unit 272 counts the number of black pixels on the left end side and the right end side of the read image on the same line in the width direction of the read image. The detection unit 272 adds the number of black pixels counted from the left end of the read image and the number of black pixels counted from the right end side, and subtracts it from the number of pixels of the read width of the read image. Then, the detection unit 272 compares the subtracted value with the threshold value for preventing erroneous detection. The detection unit 272 does not use the number of black pixels on the line whose subtracted value is smaller than the threshold for preventing erroneous detection for comparison with the determination threshold. FIG. 14B shows the result of counting the number of black pixels in each of the lines a to f shown in FIG. The number of black pixels of the a line counted from the left end of the read image (hereinafter referred to as the left end width) and the number of black pixels of the e line counted from the right end of the read image (hereinafter referred to as the right end width) are normal values due to the influence of noise. It is counted more than. Therefore, in the a line and the e line, a numerical value obtained by subtracting the sum of the left end width and the right end width from the number of pixels of the read image (hereinafter referred to as a form width) is smaller than each of the b, c, d, and f lines. ing. After calculating the form width, the detection unit 272 compares the calculated form width with a threshold for preventing erroneous detection, and excludes the a-line and e-line from black image width check targets.

  Further, when the detection unit 272 determines that the setting of the scanner device 100 is the second process, the detection unit 272 determines the black image width using the second processing threshold value. Then, the detection unit 272 determines whether or not a form is set at a correct position on the paper feed tray 161 corresponding to the second process. FIG. 15A shows the second left threshold and the second right threshold. FIG. 15B shows a case where the form is placed vertically by bringing it to the left end of the paper feed tray 161. FIG. 15C shows a case where a form is placed side by side on the left end of the paper feed tray 161. When the form is placed at the position shown in FIG. 15B, the number of black pixels from the left end of the read image to the left end of the form image is smaller than the second left threshold value. When the form is placed at the position shown in FIG. 15C, the number of black pixels from the right end of the read image data to the right end of the form image is smaller than the second right threshold value. . The detection unit 272 detects an abnormality when the left count value is smaller than the second left threshold value. Similarly, the detection unit 272 detects an abnormality when the right count value is smaller than the second right threshold value.

In addition, when the form is conveyed obliquely to the reading unit 140 of the scanner device 100, the determination of the form set position cannot be made correctly. For this reason, the detection unit 272 calculates the difference between the maximum value and the minimum value of the counted number of black pixels in order to detect that the form is read obliquely. Then, the detection unit 272 compares the calculated difference with the threshold for oblique determination, and determines that the form is read obliquely when the calculated difference is larger than the threshold for oblique determination. To do. In this case, the detection unit 272 displays an error message on the display screen of the display device 231.
Further, as the number of times of use of the scanner device 100 increases, paper dust and dirt adhere to the reading unit 140 and the conveyance path of the form, and noise is included in the read image. For this reason, a pixel that should originally be a black pixel may be determined as a white pixel, or a pixel that should be a white pixel may be determined as a black pixel. For this reason, the detection unit 272 removes noise by compressing a predetermined number of pixels to one pixel and reducing the read image, and performs an abnormality detection process on the reduced read image. For example, as shown in FIG. 16, the influence of noise can be eliminated by performing abnormality detection using a read image obtained by compressing four adjacent pixels in two vertical and horizontal pixels into one pixel. As shown in FIG. 16A, when there are three black pixels in four pixels, or when all four pixels are black pixels as shown in FIG. Replaced by a pixel. Similarly, when there are three white pixels in four pixels as shown in FIG. 16C, or when all four pixels are white pixels as shown in FIG. The pixel is replaced with a white pixel. As shown in FIG. 16E, when there are two black pixels and two white pixels, the surrounding pixels of the four target pixels are referred to as white pixels or black pixels. Determine whether. Note that the compression rate is not limited to ¼, and may be ½ or ６, for example. Further, when the determination of the form position abnormality is completed, the compressed read image is subjected to enlargement processing and converted into the original size read image. Note that the read image may be copied, and the form set position may be determined using the copied read image. In other words, the copied read image is compressed to determine the form set position, and after the determination of the form set position is completed, the copied read image is deleted.

The processing procedure of the computer apparatus 200 will be described with reference to the flowcharts shown in FIGS.
First, the control unit 210 displays a screen for selecting a process on the display screen of the display device 231 and waits for a selection input from the user. The screen for selecting a process is a screen for selecting whether the scanner apparatus 100 executes the first process or the second process. When the process selection instruction is received by the input device 221 (step S1 / YES), the control unit 210 displays a screen corresponding to the process selected by the user on the display screen of the display device 231 (step S2). Thereafter, the control unit 210 determines whether or not the input device 221 has received an instruction to start reading an image (step S3). When an instruction to start reading is received (step S3 / YES), the control unit 210 refers to the property of the screen being displayed on the display device 231 (step S4). The control unit 210 acquires information on the process selected by the user from the properties of the screen being displayed on the display device 231 and stores the information in the RAM 213 (step S4). The process information is information indicating whether the scanner apparatus 100 is to execute the first process or the second process. Next, the control unit 210 transmits a form reading instruction command to the scanner device 100 (step S5), reads the definition file from the HDD 250, and stores it in the RAM 213 (step S6). The definition file is a file storing the determination threshold value, and includes a definition file for the first process and a definition file for the second process.

  Next, the control unit 210 determines whether or not a signal for notifying abnormality such as a paper jam is input from the scanner device 100. That is, the control unit 210 determines whether or not the image reading by the scanner device 100 is normal (step S7). When a signal notifying the abnormality is input from the scanner device 100 (step S7 / NO), an error message is displayed on the display screen of the display device 231 (step S8). Thereafter, the control unit 210 removes the form that the user has jammed, sets the form on the paper feed tray 161 again, and waits until an instruction to start reading is input. In addition, when a signal notifying the abnormality is not input from the scanner device 100 and reading of the image of the form is processed normally (step S7 / YES), the control unit 210 reads the read image read by the scanner device 100. Is input (step S9). The controller 210 stores the input read image in the RAM 213 (step S9). Next, the control unit 210 performs processing for removing noise from the read image stored in the RAM 213 (step S10). Noise removal is performed by compressing a plurality of pixels and converting them to one pixel as shown in FIG. When compressing, noise is removed by determining whether the pixel to be converted is a white pixel or a black pixel according to the number of white pixels and black pixels included in a plurality of pixels to be processed. Can do.

  FIG. 18 shows a continuation of the flow of FIG. The continuation of the process of the control unit 210 will be described with reference to FIG. When the noise of the read image is removed, the control unit 210 determines the form set position (step S11). Details of this processing will be described later with reference to the flowchart shown in FIG. When the processing for determining the form set position is completed, the control unit 210 determines whether the black pixel count counted at the left and right ends of the read image is a normal value, and whether the set position of the form is normal. It is determined whether or not (step S12). If it is determined that the set position of the form on the paper feed tray 161 is not normal (step S12 / NO), the control unit 210 displays an error message on the display screen of the display device 231 (step S13). Thereafter, the control unit 210 waits until the user sets the form at a correct position on the paper feed tray 161 and inputs an instruction to start reading. If it is determined that the set position of the form on the paper feed tray 161 is normal (step S12 / YES), the control unit 210 determines whether the process requires printing (step S14). The control unit 210 determines whether the scanner apparatus 100 is executing the first process or the second process from the process information acquired in step S4. If the control unit 210 determines that the process requires printing, that is, the first process (step S14 / YES), the control unit 210 notifies the scanner device 100 of an instruction command for instructing printing of the serial number (step S15). Thereafter, the controller 210 displays the input read image on the display screen of the display device (step S16).

Next, a detailed flow for determining the form set position will be described with reference to the flowchart shown in FIG.
First, the control unit 210 sets the counting positions for counting the number of black pixels at the left and right ends of the read image (step S21). For example, when the number of black pixels is measured at 10 positions at both the left and right ends of the read image, the number of pixels in the vertical direction of the read image excluding 50 pixels in the vertical direction of the read image and excluding 50 pixels in the vertical direction is determined. The counting position is determined by dividing into 10 equal parts.

  Next, the control unit 210 counts the number of black pixels at each set position (step S22). The black pixels are counted at both the left and right ends of the read image. The black pixel is counted from the end in the width direction of the read image toward the center in the width direction, and the control unit 210 ends the counting when the white pixel is detected. When the counting of the number of black pixels ends, the control unit 210 calculates a difference between the maximum value and the minimum value of the counted number of black pixels (step S23). Note that the difference between the maximum value and the minimum value of the number of black pixels may be calculated at each of the left and right ends of the read image, or only one of them may be calculated. When the difference between the maximum value and the minimum value is calculated, the control unit 210 compares the calculated difference with a threshold for oblique determination. If the control unit 210 determines that the difference in the number of black pixels is greater than the threshold for oblique determination (step S24 / YES), it determines that the scanner device 100 has read the form obliquely. When determining that the form has been read obliquely, the control unit 210 displays an error message on the display device 231 (step S25). Thereafter, the control unit 210 waits until the user resets the form on the paper feed tray 161 and inputs an instruction to start reading. If the determination in step S24 is negative, the control unit 210 determines that the form image has been read normally without being read obliquely. Then, the control unit 210 performs a process of subtracting 10% of the black pixel number from the counted maximum number of black pixels at both the left and right ends of the read image (step S26). In addition, the control unit 210 performs a process of adding 10% of the number of black pixels to the minimum value of the counted number of black pixels at both left and right ends of the read image (step S27). Then, the control unit 210 calculates the average value of the count values of the number of black strokes at each position where the counting is performed at both the left and right ends of the read image (step S28).

  Next, the control unit 210 refers to the processing information acquired in step S4 to determine whether the scanner device 100 is executing the first process or the second process (step S29). ). When the process of the scanner device 100 is the first process (step S29 / YES), the control unit 210 uses the average value of the number of black pixels on the left end side and the first left use read from the definition file for the first process. The threshold value is compared (step S30). The control unit 210 determines an abnormal state when the average value of the number of black pixels on the left end side is larger than the first left threshold value, and stores the determination result in the RAM 213. If the average value of the number of black pixels on the left end side is equal to or smaller than the first left threshold value, the normal state is entered and the determination result is stored in the RAM 213. The control unit 210 performs the same process for the average value of the number of black pixels on the right end side (step S31), and stores a determination result indicating abnormality or normality in the RAM 213. If the determination in step S29 is negative, the control unit 210 compares the average value of the number of black pixels on the left end side with the second left threshold value read from the second processing definition file. Processing is performed (step S32). The control unit 210 determines an abnormal state when the average value of the number of black pixels on the left end side is larger than the second left threshold, and stores the determination result in the RAM 213. When the average value of the number of black pixels on the left end side is equal to or smaller than the second left threshold value, the normal state is entered and the determination result is stored in the RAM 213. The control unit 210 performs the same process for the average value of the number of black pixels on the right end side (step S33), and stores a determination result indicating abnormality or normality in the RAM 213.

As described above in detail, this embodiment has the following effects.
When the scanner device 100 reads an image with a predetermined reading width, a black image is added in addition to the read paper image. When the paper is placed at an appropriate position on the paper feed tray, the position where the continuous black pixels are cut off from the end of the read image read by the scanner device 100 is also a predetermined position corresponding to the paper. However, when the paper is not placed at an appropriate position on the paper feed tray, there are a plurality of rows or columns where the black pixel is not interrupted at a predetermined position corresponding to the predetermined paper. Focusing on this point, the control unit 210 of the computer apparatus 200 is in an abnormal state when there are a plurality of rows or columns where the positions where the continuous black pixels are interrupted from the end of the read image are not the predetermined positions corresponding to the predetermined paper. Detect as. Thereby, it can be determined whether or not the placement position of the paper placed on the paper feed tray is appropriate.

  Further, paying attention to the point that the outer edge of the predetermined paper is white, the position where the black pixel continuous from the edge of the read image changes to the white pixel is determined as the edge of the paper in the read image. For this reason, it is possible to improve the determination accuracy of the edge of the sheet in the read image.

  Further, by reducing the image size of the read image and removing the noise of the read image, it is possible to improve the determination accuracy of the edge of the paper in the read image.

  Further, in the present embodiment, among the count values of the black pixels at a plurality of locations, the difference between the count values of the black pixels and the other count values is not more than a predetermined value so as not to be used for the determination of the paper edge portion in the read image. Therefore, it is possible to improve the determination accuracy of the paper edge.

  Further, when the difference between the maximum value and the minimum value of the count values of the number of black pixels at a plurality of locations is equal to or greater than a predetermined value, an error in reading by the scanner device is detected by determining that the sheet has been read obliquely. be able to. In addition, when the difference between the maximum value and the minimum value of the count value of the number of black pixels at a plurality of locations is equal to or greater than a predetermined value, it is not used for determining the paper edge in the read image. The determination accuracy can be improved.

  In the present embodiment, the case where the number of continuous black pixels is larger than the number of black pixels corresponding to the distance from the edge of the read image to the printing position of the printing unit is detected as an abnormal state. For this reason, when the serial number is set to be printed on the paper from which the image is read, it is possible to reduce the occurrence of the case where the serial number is not printed on the paper.

(Modification)
A black image as a background portion is added to the read image read by the scanner device 100 as shown in FIGS. For this reason, even if the same type of form is scanned by the scanner apparatus 100, if the position and orientation on the paper feed tray 161 on which the form is placed are different, the read image is displayed as shown in FIGS. The position and size of the black image added to the are different. Therefore, when the scanned image is processed by the computer apparatus 200, there are cases where the positions and sizes of the black images added around the form image are not uniform even though they are the same type of form image. In such a case, the processing load on the computer device 200 that processes the read image increases. Therefore, in this modification, the position and size of the black image added around the read image can be made uniform according to the type of form.

For this reason, in this modification, the user determines in advance the position and orientation on the paper feed tray 161 on which the form is placed according to the type of form, and causes the computer apparatus 200 to register it. The position on the paper feed tray 161 on which the form is placed has, for example, three patterns of left justification, center portion, and right justification, and the orientation of the form on the paper feed tray 161 also has two patterns of vertical placement and horizontal placement. . Note that the positions and orientations on the paper feed tray 161 on which the form is placed are shown in FIGS. 9 (A) to 9 (D) and FIGS. 10 (A) to 10 (D).
The user inputs from the input device 221 of the computer device 200 the identification number for identifying the form, the type information including information such as the vertical and horizontal sizes of the form, and the position and orientation of the form. The control unit 210 of the computer apparatus 200 stores the identification number, the form type information, and the position and orientation information on the form, which are input from the input device 221, in the RAM 213. Further, the control unit 210 determines that the form is placed at the correct position and orientation on the paper feed tray 161 from the input form type information and information on the position and orientation of the form. The decision threshold that can be selected is selected. The control unit 210 stores the selected determination threshold in the RAM 213 in association with the above-described identification number, form type information, and information on the position and orientation of the form.

  Before causing the scanner device 100 to read a form image, the user inputs the identification number of the form from which the image is to be read from the input device 221. The control unit 210 reads a determination threshold value corresponding to the identification number input from the input device 221 from the RAM 213. When the read image is input from the scanner device 100, the control unit 210 counts the number of black pixels at both ends in the width direction or both ends in the length direction of the read image. If the counted number of black pixels is larger than the determination threshold value, the control unit 210 determines that the form is not placed at the correct position on the paper feed tray 161 and outputs the abnormal state. . As the determination threshold, a left threshold and a right threshold are prepared as in the above-described embodiment. In addition to this, a comparison with the counted number of black pixels may be performed using a left threshold value and a right threshold value in the length direction. The details of this processing flow are almost the same as the flowcharts shown in FIGS. However, the step of acquiring the information of the process selected by the user shown in step S4 of FIG. 17 is changed to the process of inputting the identification information of the form selected by the user and storing it in the RAM 213. Further, the step of determining whether or not the printing in step S14 in FIG. 18 is necessary is always a negative determination. Further, the step of determining whether or not the first process in step S29 of FIG. 19 is replaced with a process of reading a determination threshold corresponding to the identification information of the form from the RAM 213. Also, the steps of S30 and S31 in FIG. 19 are deleted, and the process is changed to the process of performing the processes of S32 and S33 using the determination threshold acquired in step S29.

  The above-described embodiment is a preferred embodiment of the present invention. However, the present invention is not limited to this, and various modifications can be made without departing from the scope of the present invention. For example, FIG. 1 illustrates a scanner device 100 of a type in which a sheet to be scanned by a transport roller is transported to a reading unit 140 of the scanner device 100 by a transport roller and an image is read. In addition to this, a device of a type in which a sheet is placed on the document table and an image of the sheet placed on the document table is read while moving the light source and the reading unit 140 may be used. In the above-described embodiment, an example has been described in which the computer apparatus 200 determines the form set position by causing the scanner apparatus 100 to read the form. However, the paper that the scanner device 100 reads and the computer device 200 determines the set position is not limited to a form. For example, there is a case where paper is set at a different position on the tray 161 in accordance with processing executed by the computer device 200.

  In the above-described embodiment, the image data read by the scanner device 100 is sent to the computer device 200, and the computer device 200 determines the form set position. In addition, the scanner device 100 itself may determine the above-described form set position. In this case, the determination threshold value is stored in the memory 112 provided in the controller 110 of the scanner device 100. The controller 110 performs processing according to the flowcharts shown in FIGS. 17 to 19 using the determination threshold value stored in the memory 112.

In addition, the following additional notes are disclosed regarding the above description.
(Supplementary note 1)
An input procedure for inputting a read image including an image on a predetermined sheet read by a scanner device that reads an image with a predetermined reading width;
In the read image input in the input procedure, when there are a plurality of rows or columns where the positions where the black pixels continuous from the end of the read image are not at a predetermined position corresponding to the predetermined paper exist, Detection procedure to detect as,
A program for running
(Appendix 2) The outer edge of the predetermined paper is white,
In the detection procedure, a white pixel adjacent to a black pixel continuous in the reading width direction from an end portion in the reading width direction of the read image is determined as an end image of the predetermined sheet. The program according to claim 1, wherein the abnormal state is detected when the end image is not at a predetermined position in the reading width direction of the read image.
(Additional remark 3) The removal procedure which removes the noise of the said read image by reducing the image size of the said read image is further performed,
The program according to claim 1 or 2, wherein the detection procedure detects an abnormal state with respect to a read image whose image size has been reduced by the removal procedure.
(Appendix 4) The outer edge of the predetermined paper is white,
The detection procedure includes counting the number of continuous black pixels from an end of the read image in the read width direction to a white pixel adjacent to a black pixel continuous in the read width direction. The measurement is performed at a plurality of locations in a direction orthogonal to the direction of the reading width, and among the counted values of the black pixels at the plurality of locations, the difference between the counted values and other count values is equal to or larger than a predetermined value. The program according to appendix 1, characterized in that it is excluded from the count value used for the part determination.
(Supplementary Note 5) The scanner device includes a reading unit for reading the predetermined paper, and a conveyance roller for conveying the predetermined paper to the reading unit,
The program according to any one of appendices 1 to 4, wherein the conveyance roller is arranged at a central portion of the scanner device in the reading width direction.
(Additional remark 6) The said scanner apparatus is provided with the printing part which prints the said serial number on the said form, after reading the image of the form as said predetermined | prescribed paper, when the instruction | indication which prints the serial number from the said computer is received. The program according to any one of appendices 1 to 5, characterized in that:
(Supplementary Note 7) The detection procedure is performed when the number of continuous black pixels is larger than the number of black pixels corresponding to the distance from the edge of the read image to the print position of the print unit. The program according to appendix 6, wherein detection is performed.
(Appendix 8) The outer edge of the predetermined paper is white,
The detection procedure includes counting the number of continuous black pixels from an end of the read image in the read width direction to a white pixel adjacent to a black pixel continuous in the read width direction. Note that the predetermined sheet is determined to be read obliquely when a difference between a maximum value and a minimum value of the number of black pixels counted at the plurality of positions is equal to or greater than a predetermined value. 1. The program according to 1.
(Supplementary Note 9) An input step of inputting a read image including an image on a predetermined sheet read by a scanner device that reads an image with a predetermined reading width;
In the read image input by the input step, when there are a plurality of rows or columns where the positions where the black pixels continuous from the end of the read image are not at the predetermined positions corresponding to the predetermined paper exist, Detecting step to detect as,
A mounting position determination method characterized by comprising:
(Appendix 10) The outer edge of the predetermined paper is white,
In the detection step, a white pixel adjacent to a black pixel continuous in the reading width direction from an end portion in the reading width direction of the read image is determined as an end image of the predetermined paper, and determined. The mounting position determination method according to claim 9, wherein the abnormal state is detected when the end image is not at a predetermined position in the reading width direction of the read image.
(Additional remark 11) The removal step which removes the noise of the said read image by reducing the image size of the said read image is further performed,
11. The mounting position determination method according to appendix 9 or 10, wherein in the detection step, an abnormal state is detected for the read image whose image size is reduced in the removal step.
(Appendix 12) The outer edge of the predetermined paper is white,
The detection step includes counting the number of continuous black pixels from an end of the read image in the read width direction to a white pixel adjacent to a black pixel continuous in the read width direction. The measurement is performed at a plurality of locations in a direction orthogonal to the direction of the reading width, and among the counted values of the black pixels at the plurality of locations, the difference between the counted values and other count values is equal to or larger than a predetermined value. The mounting position determination method according to appendix 9, wherein the placement position determination method is excluded from the count value used for determination of a part.
(Supplementary Note 13) The scanner device includes a reading unit for reading the predetermined sheet, and a conveyance roller for conveying the predetermined sheet to the reading unit,
The placement position determination method according to any one of appendices 9 to 12, wherein the transport roller is disposed at a central portion of the scanner device in the reading width direction.
(Supplementary Note 14) The scanner device includes a printing unit that, when receiving an instruction to print a serial number from the computer, prints the serial number on the form after reading an image of the form as the predetermined sheet. The mounting position determination method according to any one of appendices 9 to 13, characterized in that:
(Supplementary Note 15) In the detection step, when the number of continuous black pixels is larger than the number of black pixels corresponding to the distance from the edge of the read image to the print position of the print unit, The mounting position determination method according to supplementary note 14, wherein detection is performed.
(Supplementary Note 16) The outer edge of the predetermined paper is white,
The detection step includes counting the number of continuous black pixels from an end of the read image in the read width direction to a white pixel adjacent to a black pixel continuous in the read width direction. Note that the predetermined sheet is determined to be read obliquely when a difference between a maximum value and a minimum value of the number of black pixels counted at the plurality of positions is equal to or greater than a predetermined value. 9. The mounting position determination method according to 9.
(Supplementary Note 17) Input means for inputting a read image including an image on a predetermined sheet read by a scanner device that reads an image with a predetermined reading width;
In the read image input by the input means, when there are a plurality of rows or columns where the black pixel continuous from the end of the read image is not at a predetermined position corresponding to the predetermined paper, Detecting means for detecting as,
A mounting position determination apparatus comprising:
(Supplementary Note 18) The outer edge of the predetermined paper is white,
The detection unit determines and determines a white pixel adjacent to a black pixel continuous in the reading width direction from the end in the reading width direction of the read image as an end image of the predetermined sheet. 18. The mounting position determination device according to claim 17, wherein the abnormal state is detected when the end image is not at a predetermined position in the reading width direction of the read image.
(Additional remark 19) The reduction means which removes the noise of the said read image by reducing the image size of the said read image is further performed,
19. The mounting position determination device according to appendix 17 or 18, wherein the detection unit detects an abnormal state with respect to the read image whose image size is reduced by the removal unit.
(Appendix 20) The outer edge of the predetermined paper is white,
The detection means counts the number of continuous black pixels from the end in the read width direction to the white pixels adjacent to the black pixels continuous in the read width direction of the read image. The measurement is performed at a plurality of locations in a direction orthogonal to the direction of the reading width, and among the counted values of the black pixels at the plurality of locations, the difference between the counted values and other count values is equal to or larger than a predetermined value. The mounting position determination device according to appendix 17, wherein the mounting position determination device is excluded from the count value used for determination of a part.
(Supplementary Note 21) The scanner device includes a reading unit for reading the predetermined sheet, and a conveyance roller for conveying the predetermined sheet to the reading unit,
21. The mounting position determination device according to any one of appendices 17 to 20, wherein the transport roller is disposed in a central portion of the scanner device in the reading width direction.
(Supplementary Note 22) The scanner device includes a printing unit that, when receiving an instruction to print a serial number from the computer, prints the serial number on the form after reading an image of the form as the predetermined sheet. The mounting position determination device according to any one of appendices 17 to 21, characterized in that:
(Supplementary Note 23) When the number of continuous black pixels is larger than the number of black pixels corresponding to the distance from the edge of the read image to the print position of the print unit, the detection unit is in the abnormal state. The mounting position determination device according to attachment 22, wherein detection is performed.
(Supplementary Note 24) The outer edge of the predetermined paper is white,
The detection means counts the number of continuous black pixels from the end in the read width direction to the white pixels adjacent to the black pixels continuous in the read width direction of the read image. Note that the predetermined sheet is determined to be read obliquely when a difference between a maximum value and a minimum value of the number of black pixels counted at the plurality of positions is equal to or greater than a predetermined value. The mounting position determination device according to 17.

DESCRIPTION OF SYMBOLS 100 Scanner apparatus 110 Controller 130 Conveyance part 140 Reading part 150 Printing part 160 Paper feed unit 161 Paper feed tray 162,163 Side guide 165,166 Guide groove 200 Computer apparatus 210 Control part 231 Display apparatus 271 Input part 272 Detection part 273 Display control Part

Claims (10)

On the computer,
An input procedure for inputting a read image including an image on a predetermined sheet read by a scanner device that reads an image with a predetermined reading width;
In the read image input in the input procedure, when there are a plurality of rows or columns where the positions where the black pixels continuous from the end of the read image are not at a predetermined position corresponding to the predetermined paper exist, Detection procedure to detect as,
A program for running The outer edge of the predetermined paper is white,
In the detection procedure, a white pixel adjacent to a black pixel continuous in the reading width direction from an end portion in the reading width direction of the read image is determined as an end image of the predetermined sheet. The program according to claim 1, wherein the abnormal state is detected when the end image is not at a predetermined position in the reading width direction of the read image. Further executing a removal procedure to remove noise in the read image by reducing the image size of the read image;
3. The program according to claim 1, wherein the detection procedure detects an abnormal state with respect to a read image obtained by reducing an image size in the removal procedure. The outer edge of the predetermined paper is white,
The detection procedure includes counting the number of continuous black pixels from an end of the read image in the read width direction to a white pixel adjacent to a black pixel continuous in the read width direction. The measurement is performed at a plurality of locations in a direction orthogonal to the direction of the reading width, and among the counted values of the black pixels at the plurality of locations, the difference between the counted values and other count values is equal to or larger than a predetermined value. 2. The program according to claim 1, wherein the program is excluded from the count value used for determination of a part. The scanner device includes a reading unit for reading the predetermined sheet, and a conveyance roller for conveying the predetermined sheet to the reading unit,
The program according to any one of claims 1 to 4, wherein the conveyance roller is disposed at a central portion of the scanner device in a direction of the reading width.   The scanner device includes a printing unit that prints the serial number on the form after reading an image of the form as the predetermined paper when receiving an instruction to print a serial number from the computer. The program according to any one of claims 1 to 5.   In the detection procedure, the abnormal state is detected when the number of continuous black pixels is larger than the number of black pixels corresponding to the distance from the edge of the read image to the printing position of the printing unit. The program according to claim 6. The outer edge of the predetermined paper is white,
The detection procedure includes counting the number of continuous black pixels from an end of the read image in the read width direction to a white pixel adjacent to a black pixel continuous in the read width direction. The determination is performed at a plurality of locations, and when the difference between the counted maximum value and the minimum value of the number of black pixels is equal to or greater than a predetermined value, it is determined that the predetermined sheet is read obliquely. Item 1. The program according to item 1. An input step of inputting a read image including an image of a predetermined sheet read by a scanner device that reads an image with a predetermined reading width;
In the read image input by the input step, when there are a plurality of rows or columns where the black pixel continuous from the end of the read image is not at a predetermined position corresponding to the predetermined paper, Detecting step to detect as,
A mounting position determination method characterized by comprising: An input means for inputting a read image including an image on a predetermined sheet read by a scanner device that reads an image with a predetermined reading width;
In the read image input by the input means, when there are a plurality of rows or columns where the black pixel continuous from the end of the read image is not at a predetermined position corresponding to the predetermined paper, Detecting means for detecting as,
A mounting position determination apparatus comprising:

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