JP2001229312A - Method and device for segmenting image - Google Patents

Abstract

PROBLEM TO BE SOLVED: To correctly segment a partial image even in a document image with a sprocket. SOLUTION: The document image inputted by a document image input part 26 is stored in a document image memory 23. A layout discriminatining part 27 detects a barcode in the document image stored in the memory 23 and retrieves a layout database (DB) 24 based on the detected result to obtain registered information (record) corresponding to the document image. As for a prescribed position registered in the record obtained by the part 27, an image detecting/segmenting part 28 segments the position corresponding to the document stored in the memory 23 and segments the segmented partial image in an image memory 25.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image cutting method and an image cutting method for inputting a form image from an image scanner, a facsimile (hereinafter referred to as "FAX"), an image file or the like, and cutting out a partial image of the form registered in advance. It concerns the device.

[0002]

2. Description of the Related Art FIGS. 2 (A) to 2 (D) are diagrams showing an example of the configuration of a conventionally used form. FIG. 2 (A) is a diagram of a form with sprockets separated, and FIG. ) Is a diagram of a report with a left sprocket, FIG. 4C is a diagram of a report with a right sprocket, and FIG. 4D is a diagram of a report with sprockets on the left and right.

In a form 10 such as a utility bill payment form such as electricity, water, gas, telephone, etc., for example, the company code (power company name) is aaa, and the form name (electricity charge) is AAA.
In the case of, on the left side of a rectangular sheet of width Wa and height Ha,
JAN (Japanese Article Number) for fee payment form
Is printed in three or four rows, and a receipt is printed or stamped on the right.
Area is provided. The area of the receipt 12 has a width Wa.
1. The size of the height Ha1. On the side of the form 10,
A left sprocket 13L is attached via a perforation 14L, or a right sprocket 13R is attached via a perforation 14R. The width of the left sprocket 13L is La, and the width of the right sprocket 13R is Ra. The left sprocket 13L or the right sprocket 13R is provided for positioning and feeding a tape-shaped continuous paper on which a large number of forms 10 are printed.

Conventionally, in an image extracting method or an image extracting apparatus for extracting a partial image of a receipt 12 in a form 10 as shown in FIG. 2, a form image Im of the form 10 is inputted from an image scanner, a facsimile, an image file or the like. I do. At this time, the left sprocket 13
Since the L or right sprocket 13R is unnecessary for reading, it is cut and then converted into a form image Im and input. When a plurality of form images Im are input, skew (shift) may occur when these form images Im are not in the correct direction.
The entire form image Im is rotated and corrected.

At the time of form registration, the bar code 11 is set in advance with the width direction of the form image Im as the X axis and the height direction as the Y axis.
Corresponding to the company code aaa and the form name AAA, for example, the coordinates (x _o ,
y _o), coordinates of the upper left point of the area of the receipt 12 to be cut target _{(X a 1, Y a 1} ), and the size or the like of the area of the receipt 12 has been registered. Therefore, when the image cutting out, the coordinates of the upper left point of the rotation corrected form image Im (x _o, y _o) is detected and registered clipping position coordinates _{(X a 1, Y a 1} ) and acquires the clipping size And
The partial image of the area of the receipt 12 was cut out.

[0006]

However, the conventional image clipping method or image clipping apparatus has the following problems. When the form 10 with sprockets as shown in FIGS. 2B to 2D is to be read, the sprockets 13L and 13R are not required at the time of reading. Therefore, the form image Im may be cut out and then input. is necessary. However, due to an operator's cutting error or the like, the sprockets 13L and 13R may be operated with the sprockets 13L and 13R attached when the form image is acquired. In such a case, the form edge in the form image Im is widened by the width of the sprocket, so that the reading reference point is shifted, and there is a problem that a partial image cannot be cut out correctly.

An object of the present invention is to solve the problems of the prior art and to provide an image clipping method and an image clipping device capable of correctly clipping a partial image in a form image even with a form image with a sprocket. With the goal.

[0008]

According to a first aspect of the present invention, there is provided an image cutting method, comprising: a form to which a paper feed area capable of being separated to the left and right is attached; The form in which the feed area is cut out is a form image input process for inputting a form image converted into an electric signal, and, for the input form image, searching for this input form image, or By input, form type identification processing for identifying the form type in the input form image and outputting the identification result, form size in a state where the paper feed area of the form is separated, width of left and right paper feed areas, And a form layout database (hereinafter, the database is referred to as “DB”) in which the relative position of the cutout image from the center of the form is registered in advance. A form layout data search process for searching and outputting corresponding registration information by using the identification result; and forming a form size included in the registration information, and a width of the paper feed area to each pattern of attaching the paper feed area. The corresponding assumed form size is calculated, and the form end coordinates detected from the input form image and the actual form size of the actual form size are compared with the form assumed size to determine how to attach the paper feed area. Then, a form end coordinate correction process for correcting the form end coordinates, calculating form center coordinates based on the corrected form end coordinates, and determining the form center coordinates included in the registration information by a relative position of a cutout image from the form center. Image cut-out processing for cutting out a partial image at a position to be set from the input form image.

According to a second aspect, in the image cutting method according to the first aspect, the detachable paper feed area is a sprocket attached through a perforation.

According to a third aspect of the present invention, there is provided an image cutout apparatus for inputting a form to which a sprocket which can be cut off from the left and right is attached, or a form to which the sprocket has been cut is converted into an electric signal. Means and a form type for retrieving the input form image by retrieving the input form image or inputting an operator to identify the type of the form in the input form image and to output key information An identification unit, a form layout DB in which a form size, a left and right sprocket width, and a relative position of a cutout image from the center of the form in a state where a sprocket of the form is separated are registered in advance, and the form layout based on the key information. Form layout data search that searches the DB and outputs the corresponding registration information Means, a form edge detecting means for searching the input form image to detect a form edge, obtaining an actual form size from the form edge, and outputting the form edge coordinates and the actual form size; and Form size,
And an estimated form size corresponding to each pattern of how to attach the sprocket from the sprocket width and comparing the actual form size output from the form end detecting means with the assumed form size to determine how to attach the sprocket. A form end coordinate correcting means for determining and correcting form end coordinates output from the form end detecting means; calculating form center coordinates based on the corrected form end coordinates; and calculating a form center included in the registration information. And an image cutout unit for cutting out a partial image at a position determined by the relative position of the cutout image from the input form image.

As described above, by adopting the first to third aspects of the present invention, when a form image is input by the form image input processing (form image input means), the form type identification processing (form type identification means) ) Identifies the form type in the input form image and identifies the result (key information)
Is output. In the form layout DB, the form size, left and right sprocket widths, and the relative position of the cut-out image from the center of the form in a state where the paper feed area (for example, a sprocket attached through a perforation) of the form are separated are previously set. It is registered. In the form layout data search processing (form layout data search means), the form layout DB is searched by using the identification result (key information) output by the form type identification processing (form type identification means), and the corresponding registration information is retrieved. It is output and sent to form end coordinate correction processing (form end coordinate correction means). In addition, the form edge detecting means detects the form edge by searching the input form image, obtains the actual form size from the form edge, outputs the form edge coordinates and the actual form size, and performs form edge coordinate correction processing ( Form end coordinate correction means).

In the form end coordinate correction processing (form end coordinate correcting means), each pattern (for example, no left / right, only left, only right, left / right) is determined based on the form size and sprocket width included in the registration information. And the actual form size output from the form edge detection means is compared with the assumed form size to determine the sprocket attachment. The form edge coordinates output from the edge detection means are corrected and sent to the image cutout processing (image cutout means). In the image cutout processing (image cutout means), the form center coordinates are calculated based on the corrected form end coordinates, and the partial image at the position determined by the relative position of the cutout image from the form center included in the registration information is calculated. Cut out from input form image.

According to a fourth aspect of the present invention, in the image cutting method, a form to be cut out is a form image input process for inputting a form image converted into an electric signal, and a cutout is performed on the input form image. A reference mark detection process for detecting a reference mark serving as a reference, and outputting key information and a position of the reference mark according to the detection result, and a relative position of a cutout image from the reference mark serving as a cutout reference are registered in advance. A form layout data search process for searching the form layout DB that has been performed using the key information and outputting the corresponding registration information, and a position determined by a relative position of a cutout image from a reference mark included in the registration information. Image cutout processing for cutting out a partial image from the input form image.

According to a fifth aspect, in the image cutting method according to the fourth aspect, the reference mark is a bar code.

According to a sixth aspect of the present invention, in the image cutout apparatus, a form to be cut is a form image input means for inputting a form image converted into an electric signal, and the form is cut out from the input form image. A bar code detecting means for detecting a bar code serving as a reference of the bar code and outputting the key information and the position of the bar code corresponding to the detection result, and a relative position of a cut image from the bar code serving as a cut reference are registered in advance Form layout DB and the form layout DB based on the key information.
And a form layout data search unit for searching for the corresponding registration information, and an image for cutting out a partial image at a position determined by a relative position of a cutout image from a barcode included in the registration information from the input form image. Cutting means.

As described above, by adopting the configurations of the fourth to sixth aspects of the present invention, when a form image is input by the form image input processing (form image input means), the reference mark detection processing (bar code detection means) ), A reference mark (for example, a barcode) serving as a cutout reference is detected from the input form image, key information corresponding to the detection result and the position of the barcode are output, and a form layout data search process ( Form layout data search means). In the form layout data search processing (form layout data search means), the form layout DB is searched with the input key information, and the corresponding registration information is output, and sent to the image cutout processing (image cutout means). In the image cutout processing (image cutout means), a partial image at a position determined by the relative position of the cutout image from the barcode included in the registration information is cut out from the input form image.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIG. 1 is a block diagram of an image cutout apparatus according to a first embodiment of the present invention, and FIG. 3 is a view showing registration information of a form layout DB of FIG. It is. This image cutout device, for example,
A form image Im of the form 10 such as a utility bill payment form printed with a barcode 11 for identifying each form (company) as shown in FIG. 2 (the background image and the form part have different colors in this form image Im). Is input, and a device that cuts out a partial image of each form 10 (for example, an image of the area of the receipt 12) is configured by a computer having a central processing unit (hereinafter, referred to as a “CPU”) or an individual circuit. I have.

The image clipping device has a control unit 21 for controlling the entire device. The control unit 21 is connected via a bus 22 to a form image memory 23, a form layout DB 24, and a cut-out image memory 25 accessed by the control unit 21. The form image memory 23 is a memory for storing the input form image Im of the form 10 in FIG. The form layout DB 24 has a function of storing information for each form, in which information of the form 10 is registered in advance. In the form layout DB 24, for example, as shown in FIG.
A company code such as an electric power company (aaa) and an electricity charge (AA)
A), a form size such as width (Wa, etc.) and height (Ha, etc.), and a left (La
Etc.) and right (Ra etc.) sprocket width and the relative position (X
_a 1, Y _a 1, etc.), and the width (Wa1, etc.) and height (Ha1
Etc.) are registered. The cut-out image memory 25 is a memory for storing the cut-out partial image.

A form image input unit 26 for performing a form image input process, a layout identification unit 27 for performing a layout identification process, and an image detection / cutout unit 28 for performing an image detection / cutout process are connected to the bus 22. Have been. The form image input unit 26 has a form image input unit 26a. Form image input means 2
6a has a function of inputting a form image Im having a background portion and a form portion having different colors from an image input device such as an image scanner or a facsimile or an image file and storing the input form image Im in the form image memory 23. Have.

The layout identifying unit 27 includes a form type identifying unit 27a for performing a form type identifying process, and a form layout data searching unit 27 for performing a form layout data searching process.
b. The form type identifying unit 27a searches the input form image Im by searching / recognizing the form image Im (for example, searching / recognizing the barcode 11) or by inputting by an operator. The type of the form is identified, and the identification result (for example,
Key information such as company code aaa). The form layout data search unit 27b has a function of searching the form layout DB 24 with key information and outputting registration information (record) corresponding to the input form image Im.

The image detection / cutout unit 28 includes a form end detection unit 28a for performing a form end detection process, a form end coordinate correction unit 28b for performing a form end coordinate correction process, and an image cutout unit 28c for performing an image cutout process. Have. The form edge detecting means 28a searches the input form image Im to detect the form edges (for example, the upper, lower, left, and right corners of the image of the form 10 in FIG. 2A), and determines the actual form size from the form edges. It has a function to output the form end coordinates and the actual form size.

The form edge coordinate correcting means 28b determines each pattern of sprocket attachment based on the form size and sprocket width included in the record output from the form layout data retrieving means 27b (for example, no left / right, only left, only right, The expected form size corresponding to all or part of the left and right sides is obtained, and the form is attached to the actual form output from the form end detecting means 28a to determine the sprocket attachment. It has a function of correcting the entered form end coordinates. The image cutout means 28c calculates the form center coordinates based on the form end coordinates corrected by the form end coordinate correcting means 28b, and cuts out the form from the form center included in the record output from the form layout data search means 27b. Has a function of cutting out a partial image (for example, the area of the receipt 12) at a position determined by the relative position of the received image, and storing the cut out partial image in the cut-out image memory 25.

FIG. 4 is a flowchart showing the processing of an image cutting method using the image cutting apparatus of FIG.
FIG. 5 is a flowchart showing the image detection / cutout processing of FIG.

Hereinafter, an image clipping method using the image clipping device of FIG. 1 will be described with reference to FIGS. In FIG. 4, when the process is started, in a form image input process S10, the form image input means 26a converts the form image Im of the form 10 as shown in FIG. 2 from an image input device such as an image scanner or an image file. The user inputs the information, stores it in the form image memory 23, and proceeds to layout identification processing S20. The process proceeds to layout identification processing S20. In the form type identification processing S21 of the layout identification processing S20, the form type identification means 27a
For example, a barcode search / recognition process for searching and recognizing a barcode (corresponding to the barcode 11 of the form 10 in FIG. 2) in the form image Im stored in the form image memory 23 is performed, and a form layout data search process is performed. Proceed to S22. In the form layout data search processing S22, the form layout data search means 27b searches the form layout DB 24 with a company code (for example, aaa in FIG. 3) obtained as a recognition result of the form type identification processing S21, and corresponds to the form image Im. The obtained record is acquired, and the process proceeds to the image detection / cutout processing S30.

In the image search / cutout processing S30, the image detection / cutout unit 28 determines the form image Im stored in the form image memory 23 for the receipt position registered in the record acquired in the form layout data search processing S22. And cuts out the corresponding position of the image, and cuts out the cut out partial image.
5 is stored.

The details of the image detection / cutout processing S30 will be described with reference to FIG. When the image detection / cutout processing S30 of FIG. 5 is started, the form end coordinate correction unit 28 is executed in the form assumed size calculation processing S31a.
b is based on the form size and the sprocket width in the record acquired in the form layout data search processing S22,
Each pattern (for example, there is no sprocket as shown in FIG. 2 (A), there is a left sprocket 13L as shown in FIG. 2 (B),
There is a right sprocket 13R as shown in FIG.
The form assumed size at the time of both sprockets 13L and 13R as in (D) is calculated, and form size comparison processing S31
Proceed to b. In the form size comparison process S31b, the form end detection unit 28a searches the form image Im stored in the form image memory 23, and finds the form end (for example, FIG.
(The form end coordinates corresponding to the four corners of the form 10) and calculate the actual form size. Then, the form end coordinate correcting means 2
8b compares the calculated actual form size with the assumed form size of each pattern, and determines how to attach the sprockets 13L and 13R (ie, sprocket determination processing) S31.
Proceed to c.

Processing S3 of sprocket discrimination processing S31c
In 1c-1, the form edge coordinate correcting unit 28b considers the error of the input form image Im and determines that the actual form size does not match any of the assumed form sizes, and determines that the form size is abnormal. Processing ends as there is
If any one of them matches, the process proceeds to the next step S31c-2. The form end coordinate correcting unit 28b determines that the form assumed size that matches the actual form size is “with left sprocket” or “with right sprocket” (processing S31c-
2) In addition, the width of the left sprocket (corresponding to La in FIG. 2 (B)) and the width of the right sprocket (corresponding to Ra in FIG. 2 (C)) are considered in consideration of the error of the form image Im input. If they match (process S31c-3), the process is terminated because it is not identifiable, otherwise the process proceeds to the form edge correction process S31d. In step S31-2, if there is no left sprocket or no right sprocket, that is, if there is no sprocket or both sprockets, the process proceeds to step S31d.

In the form end correction process S31d, the form end coordinate correcting means 28b corrects the form end according to the assumed form size that matches the actual form size. For example, FIG.
In the case of “without sprocket” as in (A), the actual form size is used as the form size, and in the case of “with left sprocket” as in FIG. 2B, the position of the upper left corner of the form is closer to the center of the form. Shifted by the left sprocket width to
In the case of “with right sprocket” as in (C), the upper right end of the form is shifted toward the center of the form by the right sprocket width, and in the case of “with both sprockets” as in FIG. Correction of both “with left sprocket” and “with right sprocket” is performed, and form center calculation processing S32a
Proceed to.

In the form center calculation processing S32a, the image cutout means 28c calculates the form center point based on the form end coordinates calculated in the form end correction processing S31d, and proceeds to the partial image cutout processing S32b. In the partial image cutout processing S32b, the image cutout means 2
8c is based on the relative position (for example, Xa1, Ya1) and size (for example, Wa1, Ha1) of the receipt (corresponding to 12 in FIG. 2) which is a partial image registered in the record from the calculated form center point. The extracted partial image is cut out, and the cut out partial image is stored in the cut-out image memory 25. As a result, the partial image of the receipt portion in the input form image Im is stored in the cut-out image memory 25.

The first embodiment has the following effects. Form layout D with left and right sprocket widths in advance
B24, and the form size in the input form image Im and the sprocket (13L, 13R in FIG. 2)
) Is compared with the assumed form size in consideration of the combination of the attachments, so that even if the form image Im with the sprocket is not input because the sprockets 13L and 13R cannot be cut off due to an operator's mistake, etc. The receipt image, which is an image, can be accurately cut out without shifting.

(Second Embodiment) FIG. 6 is a view showing the arrangement of an image extracting apparatus according to a second embodiment of the present invention, and FIG. 7 is a view showing registration information of the form layout DB of FIG. In FIGS. 6 and 7, components common to those in FIGS. 1 and 3 showing the first embodiment are denoted by the same reference numerals. As in the first embodiment, this image cutout apparatus is a form 10 such as a utility bill payment form printed with a reference mark (for example, a barcode 11) for identifying each form (company) as shown in FIG. Form image Im
Is input and a partial image (for example, a receipt image) of each form image Im is cut out, and is configured by a computer using a CPU or an individual circuit.

The image clipping device has a control unit 21A for controlling the entire device. A form image memory 23 and a cut-out image memory 25 similar to those of the first embodiment are connected to the control unit 21A via a bus 22, and a form layout DB 24A having a configuration different from that of the first embodiment. It is connected. Form layout D
The B24A has a function of storing information for each form, in which information of the form (company code, form name, position and size of the receipt) as shown in FIG. 7 is registered. A form image input unit 26 having a form image input unit 26a similar to that of the first embodiment is connected to the bus 22, and a layout identification unit 27A having a configuration different from that of the first embodiment, The unit 28A is connected.

The layout identifying section 27A performs a layout identifying process, and includes a reference mark detecting section 27c for performing a reference mark detecting process and a form layout data searching section 27d for performing a form layout data searching process. . The reference mark detection unit 27c applies a reference mark (for example, the image of the barcode 11 in FIG. 2) to the form image Im stored in the form image memory 23.
Has a function of performing barcode search / recognition processing for outputting key information corresponding to the recognition result of the barcode image and the position of the searched barcode image. The form layout data search means 27d
It has a function of searching the form layout DB 24A in which the relative position of the cut-out image from the reference barcode is registered in advance by key information, and outputting the corresponding registration information (record). The image cutout unit 28A
Image cutting means 28 for performing image cutting processing
d. The image cutout unit 28d stores the form image memory 2 with respect to the receipt position registered in the record acquired by the form layout data search unit 27d.
3 has a function of cutting out a corresponding position of the form image Im stored in the image data 3 and storing the cut out partial image in the image memory 25.

FIG. 8 is a flowchart showing the processing of an image clipping method using the image clipping device of FIG. Hereinafter, an image cutting method will be described with reference to FIG.

In FIG. 8, when the process is started, in a form image input process S10, the form image input means 26a receives a form image of the form 10 shown in FIG. 2 from an image input device such as an image scanner or an image file. Im is input, stored in the form image memory 23, and proceeds to the layout adjustment processing S20A. In a reference mark detection process (for example, a barcode search / recognition process) S21A of the layout identification process S20A, the reference mark detection unit 27c outputs a barcode (reference) to the form image Im stored in the form image memory 23 as a reference. The barcode image (corresponding to the image of the barcode 11 in FIG. 2) is searched for and recognized, and key information (for example, a company code such as aaa in FIG. 7) corresponding to the recognition result of the barcode image and the searched barcode image The position is output, and the process proceeds to form layout data search processing S22A. In the form layout data search processing S22A, the form layout data search means 27d searches the form layout DB 24A with the company code output in the fiducial mark detection processing S21A, outputs a corresponding record corresponding to the form image Im, and cuts out the image. Proceed to process S30A.

In the image cutting process S30A,
The image cutout means 28d stores the receipt position registered in the record output in the form layout data search processing S22A in the form image memory 23 based on the barcode image position detected in the reference mark detection processing S21A. A corresponding position (that is, a partial image of a receipt) of the formed form image Im is cut out, and the cut out partial image is stored in the cut-out image memory 25.

The second embodiment has the following effects. The receipt position based on the barcode 11 is registered in the form layout DB 24A in advance, the position of the barcode image in the input form image Im is searched, and the receipt image is cut out based on the barcode image. Therefore, even if the image Im of the form 10 with sprockets as shown in FIG. 2 is input,
Receipt images that are partial images can be cut out correctly without shifting.

(Usage Form) The present invention is not limited to the above embodiment, and various modifications and utilization forms are possible. For example, there are the following modifications and uses. (A) In the form type identification process S21 in FIG. 4, the bar code 11 is searched to identify the form type. However, the form type is identified by the ruled line feature, the partial image is identified by the feature, or the form ID is identified. Even if the form type is identified by recognition or the like, substantially the same effects as in the first embodiment can be obtained.

(B) Reference mark detection processing S21 in FIG.
In A, the barcode 11 is detected as a reference mark. However, if there is another mark such as an asterisk in the form 10, if this mark is detected, the second mark may be detected.
Almost the same effects as those of the embodiment can be obtained.

(C) The layout identifying section 27 and the image detecting / cutting section 28 in FIG. 1 or the layout identifying section 27A and the image cutting section 28A in FIG. 6 may be constituted by means other than the illustrated means.

(D) In the above embodiment, the method or apparatus for cutting out an image has been described. However, the method or apparatus for cutting out an image can be used, for example, for determining a character reading position in a character recognition device (OCR). It is.

[0042]

As described above in detail, according to the first to third aspects of the present invention, the widths of the left and right paper feed areas (for example, the right and left sprockets) are registered in the form layout DB in advance. In addition, the form size in the input form image is compared with the assumed form size in consideration of the combination of the paper feed area, so the paper feed area is not separated due to mistakes etc. Even when an image of a form with a region is input, a partial image in the form image can be accurately cut out without shifting.

According to the fourth to sixth aspects of the present invention, a cutout position based on a reference mark (for example, a barcode) is registered in the form layout DB in advance, and the position of the reference mark in the input form image is registered. , And cut out the partial image based on this fiducial mark,
Even when a form image with a paper feed area (for example, a sprocket) is input, a partial image can be cut out accurately without displacement.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an image cutout device according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating a configuration example of a form.

FIG. 3 is a diagram showing registration information of a form layout DB of FIG. 1;

FIG. 4 is a flowchart illustrating a process of a first image clipping method.

FIG. 5 is a flowchart showing the image detection / cutout processing of FIG. 4;

FIG. 6 is a configuration diagram of an image cutout device according to a second embodiment of the present invention.

FIG. 7 is a diagram showing registration information of a form layout DB of FIG. 6;

FIG. 8 is a flowchart illustrating a process of the image cutout method of FIG. 6;

[Explanation of symbols]

 21, 21A control unit 23 form image memory 24, 24A form layout DB 25 cutout image memory 26 form image input unit 26A form image input unit 27, 27A layout identification unit 27a form type identification unit 27b, 27d form layout data search unit 27c reference Mark detecting means 28 Image detecting / cutout part 28A Image cutting part 28a Form edge detecting means 28b Form edge coordinate correcting means 28c, 28d Image cutting means S10 Form image input processing S20, S20A Layout identifying processing S21 Form type identifying processing S21A Reference mark detecting Processing S22, S22A Form layout data search processing S30 Image detection / cutout processing S30A Image cutout processing S31 Form end coordinate correction processing S31a Vote assumed size calculation process S31b form size comparison process S31c sprocket determination processing S31d form end correction process S32 image cutout processing S32a form central calculation processing S32b partial image extraction process

Claims (6)

[Claims] 1. A form image input processing for inputting a form to which a paper feed area detachable to the left and right has been attached or a form from which the paper feed area has been cut out is converted into an electric signal. A form type identification process for retrieving the input form image for the input form image or by inputting an operator to identify the type of the form in the input form image and to output an identification result; A form layout database in which the form size in the state where the form feed area of the form is separated, the width of the left and right form feed areas, and the relative position of the cutout image from the form center is registered in advance using the identification result. Form layout data search processing for outputting corresponding registration information, and the form size and paper feed area included in the registration information The form assumed size corresponding to each pattern of the manner of attaching the paper feed area is calculated from the width, and the actual form size and the form assumed size of the form end coordinates and the actual form size detected from the input form image are used. And comparing the form end coordinates with the form feed area, correcting the form end coordinates, and calculating the form center coordinates based on the corrected form end coordinates. An image clipping method comprising: clipping a partial image at a position determined by a relative position of a clipped image from a center of a contained form from the input form image. 2. The image cutting method according to claim 1, wherein the detachable paper feed area is a sprocket attached through a perforation. 3. A form image input means for inputting a form to which a sprocket detachable to the left and right is attached or a form from which the sprocket has been cut out and which is converted into an electric signal, and said input form For the image, by searching for this input form image, or by operator input, form type identification means for identifying the type of the form in the input form image and outputting key information, and a sprocket of the form A form layout database in which the form size in the separated state, the width of the left and right sprockets, and the relative position of the cutout image from the form center are registered in advance, and the form layout database is searched with the key information, and the corresponding registration information is searched. Form layout data searching means for outputting A form edge detecting means for searching for a form edge by searching for a page, obtaining an actual form size from the form end, and outputting the form end coordinates and the actual form size, a form size included in the registration information, A form assumed size corresponding to each pattern of how to attach the sprocket is calculated from the sprocket width, and the actual form size output from the form end detecting means is compared with the form assumed size to determine how to attach the sprocket. A form edge coordinate correcting means for correcting the form edge coordinates output from the form edge detecting means, calculating form center coordinates based on the corrected form edge coordinates, and calculating the form center coordinates from the form center included in the registration information. Image cutting means for cutting out a partial image at a position determined by the relative position of the cut-out image from the input form image. Cutting device. 4. A form image input process for inputting a form image converted into an electric signal for a form to be cut out, and detecting a fiducial mark serving as a cutout reference for the input form image. A reference mark detection process for outputting key information corresponding to the detection result and the position of the reference mark, and a form layout database in which the relative position of the cutout image from the reference mark serving as the cutout reference is registered in advance, A form layout data search process for searching for key information and outputting corresponding registration information, and a partial image at a position determined by a relative position of an image cut out from a reference mark included in the registration information, from the input form image. An image clipping method, comprising: clipping an image. 5. The method according to claim 4, wherein the reference mark is a barcode. 6. A form image input means for inputting a form image converted into an electric signal to form a form to be cut out, and detecting a bar code serving as a cut-out reference for the input form image. A barcode detecting means for outputting key information and the position of the barcode corresponding to the detection result; a form layout database in which a relative position of a cutout image from a barcode serving as a cutout reference is registered in advance; A form layout data search unit that searches the form layout database with key information and outputs corresponding registration information; and a partial image at a position determined by a relative position of a cut-out image from a barcode included in the registration information. Image cutout means for cutting out from the input form image, Image cut-out device for the butterflies.