JP7358841B2 - Image processing device and image processing program - Google Patents

Description

The present invention relates to an image processing device and an image processing program.

Patent Document 1 has an object to provide an image processing device that can accurately remove only the punch holes when a document with punch holes is input, and the punch hole search range determining means A search range for punch holes is determined from the input image obtained by the input means, and the punch hole candidate extraction means extracts candidate rectangles for punch holes within the search range obtained by the punch hole search range determination means. The punch hole detection means identifies the punch hole from information on the punch hole candidate rectangle obtained by the punch hole candidate extraction means, and the punch hole removal means removes the punch hole obtained by the punch hole detection means. is disclosed.

Patent Document 2 discloses: one or more image reading means for reading image information on the front and back sides of a document; an image storage section; a resolution conversion means for converting the resolution of the read image read by the image reading means; A document hole detection means that uses a resolution conversion means to create low-resolution images of the front and back sides, respectively, and detects holes in the document based on those images; and a hole in the document detected by the document hole detection means. document hole erasing means for erasing hole images from the read image based on the above, and the document hole detection means has a feature for detecting holes in the document extracted from low resolution pixel information on the surface. An image processing apparatus is disclosed that detects a hole in a document based on the degree of coincidence between the amount of the hole in the document and a feature amount for detecting the hole in the document extracted from the low-resolution pixel information on the back side. ing.

Japanese Patent Application Publication No. 2004-080341 Patent No. 4219333

When removing punch holes from an image of a page with punch holes, in a configuration in which a predetermined shape is detected as a punch hole and removed from the image of the page, punches of a shape other than the predetermined shape are removed. Holes cannot be removed.
On the other hand, in the case of a document consisting of a plurality of pages with punch holes, the document is filed with the punch holes, and as the document is taken in and out of the file, the punch holes in the document may be torn or distorted. In such a case, with a technique that detects a predetermined shape as a punch hole, a punch hole with a tear or distortion may not be detected as a punch hole.
The present invention provides an image processing device and an image processing program that can remove punched holes that are out of shape when reading a document consisting of multiple pages with punched holes and removing the punched holes from the document. is intended to provide.

The gist of the present invention to achieve this object resides in the following inventions. The "claims" below are the claims originally filed.
The invention according to claim 1 includes a processor, and when the processor detects a similar image resembling a punch hole from a first page of a document consisting of a plurality of pages read by a reading means, the processor detects the first page of the document. The image processing apparatus is characterized in that when a punch hole is detected on a second page different from the first page, the similar image is removed.

The invention according to claim 2 is the image processing apparatus according to claim 1, wherein in the removal process performed by the processor, the size of the area to be removed of the similar image is different from the size of the area to be removed of the punch hole. be.

A third aspect of the present invention is the image processing apparatus according to the second aspect, wherein in the removal process performed by the processor, an area of the similar image to be removed is larger than an area of the punch hole to be removed.

A fourth aspect of the present invention is the image processing apparatus according to the third aspect, wherein in the removal process performed by the processor, an area from which the similar image is removed is from the similar image to the end of the page.

In the invention of claim 5, in the removal process performed by the processor, the similar image removal method is different depending on whether the first page is a first page or a last page of the document or an intermediate page. , an image processing apparatus according to claim 1.

A sixth aspect of the present invention is the image processing apparatus according to the fifth aspect, wherein the processor removes the similar image without warning when the first page is a first page or a last page.

A seventh aspect of the present invention is the image processing apparatus according to the fifth aspect, wherein when the first page is an intermediate page, the processor issues a warning and performs removal according to the user's judgment.

According to an eighth aspect of the invention, the processor uses a first threshold value for detecting a punch hole and a second threshold value for detecting a non-punch hole, and the target image has a difference between the first threshold value and the second threshold value. The image processing apparatus according to claim 1, wherein if the image is between the threshold values, the image is detected to be similar to a punch hole.

In the invention according to claim 9, the processor removes the similar image when the position of the similar image in the first page is the same or symmetrical to the punch hole in the second page. , an image processing apparatus according to claim 1.

According to the tenth aspect of the invention, when a computer detects a similar image resembling a punch hole from the first page of a multi-page document read by the reading means, the computer detects a similar image that is different from the first page of the document. This is an image processing program for functioning as a removal means for removing the similar image when a punch hole is detected on the second page.

According to the image processing device of claim 1, when a document consisting of multiple pages with punched holes is read and the punched holes in the document are removed, punched holes that are out of shape can be removed. .

According to the image processing device of the second aspect, the size of the region from which similar images are removed can be made different from the size of the region from which punch holes are removed.

According to the image processing device of the third aspect, the area from which similar images are removed can be made larger than the area from which punch holes are removed.

According to the image processing device of the fourth aspect, the area from which similar images are removed can extend from the similar images to the edge of the page.

According to the image processing apparatus of the fifth aspect, the similar image removal method can be different depending on whether the first page or the last page of the document is the first page or the middle page of the document.

According to the image processing apparatus of the sixth aspect, when the first page or the last page is targeted, similar images can be removed without warning.

According to the image processing apparatus of the seventh aspect, when an intermediate page is targeted, removal can be performed according to the user's judgment.

According to the image processing device of the eighth aspect, when the target image is between the first threshold value and the second threshold value, it is possible to detect that the target image is a similar image similar to a punched hole.

According to the image processing apparatus of the ninth aspect, when the position of the similar image in the first page is at the same position or symmetrical position to the punch hole in the second page, the similar image can be removed.

According to the image processing program of claim 10, when a document consisting of multiple pages with punched holes is read and the punched holes in the document are removed, punched holes that are out of shape can be removed. .

FIG. 2 is a conceptual module configuration diagram regarding a configuration example of the present embodiment. FIG. 1 is an explanatory diagram showing an example of a system configuration using this embodiment. It is an explanatory view about the example of a punch hole. It is an explanatory view about the example of a punch hole. It is an explanatory view about the example of a punch hole. FIG. 2 is an explanatory diagram showing an example data structure of a punch hole information table. 3 is a flowchart illustrating an example of processing according to the present embodiment. FIG. 2 is an explanatory diagram showing an example of processing according to the present embodiment. FIG. 3 is an explanatory diagram showing an example data structure of a threshold value determination method table. FIG. 2 is an explanatory diagram showing an example of processing according to the present embodiment. FIG. 3 is an explanatory diagram showing an example data structure of a filling area information table. FIG. 2 is an explanatory diagram showing an example of processing according to the present embodiment. FIG. 2 is an explanatory diagram showing an example of processing according to the present embodiment. FIG. 2 is an explanatory diagram showing an example of processing according to the present embodiment. FIG. 2 is an explanatory diagram showing an example of processing according to the present embodiment. FIG. 2 is an explanatory diagram showing an example of processing according to the present embodiment. 3 is a flowchart illustrating an example of processing according to the present embodiment. 3 is a flowchart illustrating an example of processing according to the present embodiment. FIG. 2 is an explanatory diagram showing an example of processing according to the present embodiment.

Hereinafter, an example of a preferred embodiment for realizing the present invention will be described based on the drawings.
FIG. 1 shows a conceptual module configuration diagram of a configuration example of this embodiment.
Note that a module generally refers to logically separable components such as software (computer programs are included in the interpretation of "software"), hardware, and the like. Therefore, the module in this embodiment refers not only to a module in a computer program but also to a module in a hardware configuration. Therefore, this embodiment provides a computer program for making the computer function as those modules (for example, a program for making the computer execute each procedure, a program for making the computer function as each means, a program for making the computer It also serves as an explanation of programs, systems, and methods for realizing the functions of However, for convenience of explanation, words such as "storing", "storing", and equivalent words are used; however, when the embodiment is a computer program, these words mean "storing in a storage device" or "storing". This means controlling the device so that it stores information. In addition, modules may have one-to-one correspondence with functions, but in implementation, one module may be composed of one program, multiple modules may be composed of one program, or conversely, one module may be composed of one program. may be composed of multiple programs. Also, multiple modules may be executed by one computer, or one module may be executed by multiple computers by computers in a distributed or parallel environment. Note that one module may include other modules. Further, hereinafter, the term "connection" is used not only for physical connection but also for logical connection (for example, data exchange, instructions, reference relationships between data, login, etc.). "Predetermined" refers to something that has been determined before the target process, not only before the process according to this embodiment starts, but also after the process according to this embodiment starts. Also, before the target process, it is used to include the meaning that it is determined according to the situation/state at that time or according to the situation/state up to that point. If there are multiple "predetermined values", they may be different values, or two or more values ("two or more values" includes all values, of course). They may be the same. Furthermore, the statement "If A, do B" is used to mean "determine whether A is the case, and if it is A, do B." However, this excludes cases where it is not necessary to determine whether or not it is A. Furthermore, when things are listed like "A, B, C", etc., unless otherwise specified, this is an exemplary list, and includes cases where only one of them is selected (for example, only A).
In addition, a system or device is composed of multiple computers, hardware, devices, etc. connected by communication means such as a network (a "network" includes a one-to-one communication connection), or a This also includes cases where it is realized by a computer, hardware, device, etc. The terms "device" and "system" are used interchangeably. Of course, the term "system" does not include anything that is nothing more than a social "mechanism" (in other words, a social system) that is an artificial arrangement.
In addition, for each process performed by each module, or for each process performed within a module, the target information is read from the storage device, and after the processing is performed, the processing results are written to the storage device. be. Therefore, a description of reading from the storage device before processing and writing to the storage device after processing may be omitted. Note that storage devices here include hard disk drives, RAM (abbreviation for Random Access Memory), external storage media, storage devices via communication lines, registers in CPU (abbreviation for Central Processing Unit), etc. Good too.

The image processing apparatus 100 according to the present embodiment has an image processing function of removing punch holes from an image read from a document, and as shown in the example of FIG. 110, a punch hole removal module 130, an image storage module 135, and an output module 140.
A punch hole is a hole created by punching a hole in paper such as a document. For example, a round hole punched to bind documents using files, clipboards, strings, etc. Note that punch holes include copies of documents with punch holes.
The image processing apparatus 100 detects an image of a punch hole from a read image of a document having punch holes, and removes the image of the punch hole.

The reading module 105 is connected to the punch hole detection module 110. The reading module 105 reads an image of the document and passes the image to the punch hole detection module 110 . For example, reading paper documents with a scanner or camera, receiving images from an external device via a communication line such as by fax, or using a storage device (such as a hard disk built into a computer, or via a network) This includes reading out images stored in a connected server (including a connected server, etc.). The image may be a binary image or a multivalued image (multivalued images include color images). The accepted image is an image consisting of multiple pages. Furthermore, the content of the image may be a document used for business, a pamphlet for advertising, or the like. Note that it is only necessary that the loaded images include images with punch holes, all images may include images with punch holes, and images without punch holes may be mixed. Good too. Images with punch holes may be a mixture of pages with punch holes that can be detected by conventional techniques and pages with punch holes that are distorted in shape.

The punch hole detection module 110 includes a first stage detection module 115, a second stage detection module 120, and a punch hole information storage module 125, and is connected to the reading module 105 and the punch hole removal module 130. The punch hole detection module 110 detects an image of a punch hole and a similar image similar to the punch hole from the image read by the reading module 105.

The first stage detection module 115 detects an image of a punched hole from the image read by the reading module 105. The first stage detection module 115 detects what can be reliably recognized as an image of a punched hole. For example, it may be determined whether the image is a punch hole image by comparing it with a first threshold value. The first threshold is a threshold for detecting a punched hole. The comparison with the first threshold may be the feature quantity of the image, the distance between the formal punch hole image and the target image in the feature space, or the punch hole It may be accuracy. Alternatively, the punch hole image may be detected by template matching with a punch hole image prepared in advance.

The second stage detection module 120 uses a first threshold value for detecting a punch hole and a second threshold value for detecting a non-punch hole, and the target image is between the first threshold value and the second threshold value. , it is detected that the image is similar to a punch hole.
Note that the comparison with the first threshold value or the second threshold value may be the feature amount of the image, or may be the distance between the official punch hole image and the target image in the feature amount space. However, it may also be punch hole accuracy, which will be described later.
Here, the "similar image similar to a punched hole" was originally a punched hole, but the punched hole expanded due to handling of the document, etc., and the first stage detection module 115 could not detect it as a punched hole. This is an image. Details will be described later using examples shown in FIGS. 3, 4, and 5.

The punch hole information storage module 125 stores information regarding punch holes, which is a processing result by the first stage detection module 115 or the second stage detection module 120. For example, a punch hole information table 600 is stored. FIG. 6 is an explanatory diagram showing an example data structure of the punch hole information table 600. The punch hole information table 600 has a document ID column 605, a page ID column 610, a punch hole arrangement direction column 615, a punch hole number column 620, a position column 625, a size column 630, and a shape column 635. Note that in the description of FIG. 6, the punched hole includes both a punched hole detected by the first-stage detection module 115 and a similar image similar to the punched hole detected by the second-stage detection module 120. In this embodiment, the document ID column 605 stores information for uniquely identifying a document (specifically, document ID: an abbreviation for IDentification). In this embodiment, the page ID field 610 stores information for uniquely identifying a page (specifically, a page ID). The punch hole alignment direction field 615 stores the punch hole alignment direction on the page. For example, there are vertical direction, horizontal direction, etc. The punch hole number column 620 stores the number of punch holes on that page. For example, there are 1, 2, 3, etc. Note that the following pairs of position fields 625 to shape fields 635 follow the punch hole number field 620 by the number in the punch hole number field 620. The position field 625 stores the position of the punched hole. For example, it may be the coordinates of the center position, or the positions of each corner of the circumscribed rectangle of the punch hole. The size column 630 stores the size of the punched hole. For example, it may be a diameter, length and width, area, etc. The shape column 635 stores the shape of the punched hole. For example, when detected by the first-stage detection module 115, the shape is a circle, and when detected by the second-stage detection module 120, the shape is an ellipse, a bow, or a rectangle with one side of an arc.

The punch hole removal module 130 is connected to the punch hole detection module 110, the image storage module 135, and the output module 140.
The punch hole removal module 130 removes similar images similar to the punch holes detected by the first stage detection module 115 and the punch holes detected by the second stage detection module 120. As a method for removing it, for example, it may be possible to embed a color that is the same as the surrounding area of the punch or similar image.
Note that when removing the punch hole detected by the first stage detection module 115, the region of the punch hole detected by the first stage detection module 115 is targeted for removal.
When the punch hole detection module 110 detects a similar image similar to a punch hole from the first page of a multi-page document read by the reading module 105, the punch hole removal module 130 removes the first page of the document from the first page of the document. If a punch hole is detected on a second page different from the second page, the similar image is removed.
The "second page different from the first page" may be any page within the same document that is not the first page. Alternatively, the page may be a predetermined page other than the first page. For example, the page may be the page immediately before the first page, or the page immediately after the first page. Further, statistical values of punch holes in a plurality of pages other than the first page may be used. Here, the statistical values include, for example, an average value, a mode value, a median value, and the like.
Note that the processing by the punch hole removal module 130 is generally performed in page order. In that case, the second page is before the first page. Furthermore, if the pages after the first page are used as the second page, it is sufficient to read all the pages of the document and then process from the last page to the first page. In other words, the second page may be a page read after the first page as well as a page read before the first page in the order of reading.

Further, the punch hole removal module 130 may set the size of the area to be removed of the similar image to be different from the size of the area to be removed of punch holes.
For example, the area for removing similar images may be larger than the area for removing punch holes.

Further, the punch hole removal module 130 may use a different method for removing similar images depending on whether the first page is the first page or the last page of the document or if it is an intermediate page.
For example, if the first page is the first page or the last page, the punch hole removal module 130 may remove similar images without warning.
For example, if the first page is an intermediate page, the punch hole removal module 130 may warn the user and perform removal according to the user's judgment. An intermediate page is a page that is the first page but not the last page.

Further, the punch hole removal module 130 may remove the similar image if the position of the similar image in the first page is the same or symmetrical to the punch hole in the second page. The first and second pages are likely to have the same punched holes, so the condition is that the position of the similar image on the first page is the same as the punched hole on the second page. , similar images are removed. Note that the reason why there is also a "symmetrical position" is to cope with cases where the target page is upside down, upside down, etc. Examples of symmetry include point symmetry and line symmetry about the center line of the page.

Image storage module 135 is connected to punch hole removal module 130 . The image storage module 135 stores the image read by the reading module 105 and the image processed by the punch hole removal module 130. The punch hole removal module 130 uses the processing results from the punch hole detection module 110 to remove punch hole images and similar images similar to the punch holes from the images in the image storage module 135, and uses the removal results to remove the punch hole images and similar images similar to the punch holes. The image is stored in the image storage module 135.

The output module 140 is connected to the punch hole removal module 130. The output module 140 receives the image of the punch hole and the image from which the similar image similar to the punch hole has been removed by the punch hole removal module 130, and outputs the image. Outputting an image means, for example, printing it with a printing device such as a printer, displaying it on a display device such as a display, transmitting the image with an image transmission device such as a fax, or transmitting the image to an image storage device such as an image database. This includes writing the information, storing it in a storage medium such as a memory card, and passing it to another information processing device.

FIG. 2 is an explanatory diagram showing an example of a system configuration using this embodiment. It is also a block diagram showing an example of the hardware configuration of a computer that implements this embodiment.
The image processing device 200 includes an image input module 205, an image processing module 210, an image output module 240, a memory 250, a CPU 255, a ROM 260, a communication module 265, and an operation panel 270. The image input module 205 is an example of the reading module 105, the detection module 215 is an example of the punch hole detection module 110, the image forming module 230 is an example of the punch hole removal module 130, and the image output module 240 is an example of the output module 140. This is an example.

The image input module 205 is connected to the detection module 215 and CPU 255 of the image processing module 210. The image input module 205 includes, for example, a scanner.
The image processing module 210 includes a detection module 215 and an image forming module 230, and is connected to the CPU 255. The image processing module 210 performs processing such as removing punch hole images on the image input by the image input module 205 or the image stored in the memory 250, and outputs the image after the removal. Pass to module 240.
The detection module 215 is connected to the image input module 205 and memory 250. The detection module 215 detects images of punched holes and similar images similar to punched holes.
The image forming module 230 is connected to an image output module 240 and a memory 250. The image forming module 230 removes punch hole images and similar images similar to punch holes from the target page image.
The image output module 240 is connected to the image forming module 230 and CPU 255 of the image processing module 210. Examples of the image output module 240 include a printer and the like.

The memory 250 is connected to the detection module 215 of the image processing module 210, the image forming module 230, and the CPU 255. Examples of the memory 250 include a RAM, a hard disk, and a flash memory.
The CPU 255 is connected to the image input module 205, image processing module 210, image output module 240, memory 250, ROM 260, communication module 265, and operation panel 270. The CPU 255 follows a computer program that describes the execution sequence of the various modules described in this embodiment, that is, the first stage detection module 115, the second stage detection module 120, the punch hole removal module 130, etc. This is a control unit that executes the specified processing.
ROM260 is connected to CPU255. The ROM 260 stores programs used by the CPU 255, calculation parameters, and the like.
Communication module 265 is connected to CPU 255. The communication module 265 is connected to a communication line and executes data communication processing with the outside.
Operation panel 270 is connected to CPU 255. Operation panel 270 is a device operated by an operator. The operation panel 270 includes a liquid crystal display device, an organic EL display, or the like, and displays various information as text or image information. Alternatively, it may be a touch screen or the like that functions as both a pointing device and a display. In this case, the functions of the keyboard may be realized by drawing a keyboard (also referred to as a so-called software keyboard, screen keyboard, etc.) on the touch screen using software.

Regarding the computer program, the computer program, which is software, is loaded into the system with this hardware configuration, and the software and hardware resources cooperate to realize this embodiment.
Note that the hardware configuration of image processing apparatus 100 shown in FIG. 2 shows one example of the configuration, and this embodiment is not limited to the configuration shown in FIG. Any configuration that is executable is sufficient. For example, as a processor, a GPU (abbreviation for Graphics Processing Unit, including GPGPU (abbreviation for General-Purpose computing on Graphics Processing Units)) may be used, or some modules may be configured as dedicated hardware (for example, for a specific purpose). It consists of integrated circuits (specific examples include ASICs (application specific integrated circuits)) and reconfigurable integrated circuits (specific examples include FPGAs (field-programmable gate arrays)). Alternatively, some of the modules may be located in an external system and connected via communication lines, or a plurality of the systems shown in FIG. 2 may be connected to each other via communication lines and operate cooperatively with each other. In addition to personal computers, in particular, mobile information communication equipment (mobile information communication equipment includes mobile phones, smartphones, mobile devices, wearable computers, etc.), information appliances, robots, copiers, faxes, scanners, printers, It may be incorporated into a multifunction device (a multifunction device is an image processing device having two or more functions such as a scanner, a printer, a copying machine, and a fax).

FIG. 3 is an explanatory diagram of an example of punched holes.
In the case of a document consisting of multiple pages, since it is filed using punch holes, tears may occur in the punch holes. For example, when checking a filed document or extracting a page from the file, the punched holes may tear.
For example, as shown in FIG. 3, in order to set a document 300 consisting of multiple pages in a binder 350, each page of the document 300 has punch holes. In other words, a plurality of documents 300 are bound together using rings of the binder 350, binding strings, and the like. Then, in order to view the nth page (front) 310, the page is turned over, and an outward pulling force 390 is applied to the (n-1)th page (back) 305. As a result, the punch hole on the (n-1)th page (back side) 305 collapses and its shape is no longer a circle. Therefore, there may be cases where punch holes cannot be detected simply by detecting an image of a circle of a predetermined size.

FIG. 4 is an explanatory diagram of an example of punched holes. This figure shows an example of punch holes on each page of the document 300 shown in the example of FIG. 3 .
Each page (image 401, image 40n, image 40n1, etc.) has two punch holes.

Image 401 and image 40n show examples of punched holes that are intact.
For example, the image 40n represents the image of the surface of the n-th page, and there are punch holes 410n and 420n, and in order to remove the image of the punch holes, the punch hole filling area 412n and the punch hole filling area 422n are targeted. It is said that Specifically, as shown in the example of FIG. 4A, a punch hole filling region 422n is set to include the periphery of the punch hole 420n, and the punch hole filling region 422 is targeted for removal.

The image 40n1 shows an example of a state where the punch hole is collapsed.
For example, the image 40n1 represents an image of the surface of the (n+1)th page, and includes a punch hole 410n1 and a similar punch hole 420n1. The punch hole filling area 422n1 is targeted. Specifically, as shown in the example of FIG. 4(b), a similar punch hole filling region 422n1 is set including the surroundings of the similar punch hole 420n1 and further expanded in the filling region shape expansion direction 440, and The punch hole filling region 422n1 is targeted for removal. In addition, in the example of FIG. 4B, there are two directions, the right direction and the left direction, as "expansion in the filling region shape expansion direction 440", but the end of the image 40n1 in the filling region shape expansion direction 440, The direction to the nearest end may be adopted. In the example of FIG. 4(b), it is expanded to the left. Note that the filling region shape expansion direction 440 is a straight line that intersects perpendicularly with the punch hole arrangement direction 430, which is a straight line passing through the centers of the plurality of punch holes, and passes through the centers of the similar punch holes 420n1.
The area of the similar punch hole filling region 422n1 (the area of the similar punch hole filling region 422n1 is an example of the "area for removing similar images") is the area of the punch hole filling region 422n (the area of the punch hole filling region 422n is an example of the "area for punch hole removal"). (Example)

FIG. 5 is an explanatory diagram of an example of punched holes. This shows a specific example of a collapsed punch hole.
The image 501 shown in the example of FIG. 5A includes a punch hole area 510 and a punch hole area 520. As shown in the example of FIG. 5B, which is an enlarged view of the punch hole area 510, the punch hole 515 is collapsed. Specifically, the circular punch hole becomes larger toward the left. This is because the outward pulling force 390 shown in the example of FIG. 3 acts. The punch holes become larger in the direction perpendicular to the straight line passing through the center of the two punch holes (horizontal direction in the example of FIG. 5) and in the direction closer to the edge of the image 501 (to the left in the example of FIG. 5). ing. Therefore, the punch hole filling area may also be expanded in the same way.

In this embodiment, even if the shape of the punch hole is distorted, the punch hole whose shape is distorted is removed.
A punched hole whose shape is distorted cannot be detected by the first stage detection module 115. Therefore, by using information regarding punch holes in pages other than the target page, even punch holes whose shapes are distorted are treated as punch holes to be removed.
For punched holes whose shape has been distorted, the shape of the region to be filled with the punched hole is perpendicular to the row of punched holes, and the region is expanded in the direction toward the near edge of the page.

FIG. 7 is a flowchart showing an example of processing according to this embodiment. An example is shown in which documents are processed in the order they are read.
The processes from step S702 to step S722 are repeated in that order for all pages from the first page to the last page.
In step S704, the i-th page is scanned. In other words, the i-th page image is read.
In step S706, punch holes are detected.
In step S708, it is determined whether or not "Ac _i ≧th1". If "Ac _i ≧th1", the process advances to step S718; otherwise, the process advances to step S710. In other words, if the punch hole accuracy A _i indicating the probability that the hole is a punch hole is greater than or equal to the first threshold value th1, it is determined that the punch hole is a punch hole.

In step S710, it is determined whether "th1>Ac _i ≧th2", and if "th1>Ac _i ≧th2", the process proceeds to step S712; otherwise, the process proceeds to step S722. That is, if a similar image similar to a punched hole is detected, the process advances to step S712. If the image is not a similar image similar to a punch hole, the process advances to step S722.

In step S712, the registered filling area information is extracted. For example, the fill area information table 1100 on page i-1 is extracted.
In step S714, it is determined whether there is a punch hole at the same position on page i-1. If there is, the process advances to step S716; otherwise, the process advances to step S722. That is, if there is a similar image similar to the punch hole in the target page at the same position as the punch hole in the previous page, it is assumed that the holes are continuous, and the hole filling process from step S716 onwards is performed. Although page i-1 (previous page) is used, any page other than the target page (i-page) may be used.
In step S716, the filling area is expanded. Specifically, the area is expanded in the direction of the edge of the page image that is perpendicular to the row of punch holes (a straight line passing through the centers of the plurality of punch holes) and is closer to the edge of the page image. A similar punch hole filling region 422n1 shown in the example of FIG. 4 is generated.

In step S718, fill area information is registered. Specifically, a punch hole information table 600 is generated.
In step S720, hole filling processing is performed. Specifically, the punch hole filling area 422n shown in the example of FIG. 4 or the similar punch hole filling area 422n1 is filled using the image around the punch hole.
In step S722, the process from step S702 is repeated until all pages are completed, and when all pages are completed, the process advances to step S724.

In step S724, it is determined whether "th1>Ac ₁ ≧th2", and if "th1>Ac ₁ ≧th2", the process proceeds to step S726; otherwise, the process ends (step S799). . That is, for Ac ₁ of the first page, the same process as step S710 is performed. In the case of the process according to this flowchart, even if the result in step S710 is Yes on the first page, there is no previous page in step S714, so the processes from step S716 onward cannot be performed. Therefore, the process of step S724 is performed. However, if there is no punch hole in the target document, step S724 may not be performed.
In step S726, the blanks on the first page are filled in or a warning is notified to the user. Note that the "first page fill-in process" includes the processes of steps S716, S718, and S720. Further, as a "notify warning", a warning may be displayed on the operation panel 270, or the warning may be sent to the user using an e-mail, a message on SNS, or the like.

FIG. 8 is an explanatory diagram showing an example of processing according to this embodiment. An example of the punch hole detection method by the first stage detection module 115 and the second stage detection module 120, or the processing of steps S708, S710, and S712 in the flowchart shown in FIG. 7 will be described.
Specifically, punch hole accuracy (ac) is used. The punch hole accuracy uses information about the probability that the punch hole is a hole, which is calculated when the punch hole is detected. A description will be given below using an image 801 shown in the example of FIG. 8(a). This image 801 has a collapsed punch hole.

1. Edges in the image are detected and binarized. When edges are detected and binarized for the image 801 shown in the example of FIG. 8(a), a processed image 811 shown in the example of FIG. 8(b) is obtained. Conventional techniques may be used as the edge detection method and the binarization method. For example, as an edge detection method, an edge detection filter may be used, or a differential edge detection method may be used.

2. A circle in the image is searched for using Hough transform or the like, and pixels belonging to a specified circular area are counted. FIG. 8C shows the results of detecting circles in the processed image 811 shown in the example of FIG. 8B using Hough transform. FIG. 8C shows that two circles, a detection circle 830 and a detection circle 832, are detected in the processed image 821. The number of pixels within this detection circle 830 is counted as the number of pixels within the circular area. Then, the number of black pixels between the detection circle 830 and the detection circle 832 and the number of black pixels connected thereto are counted as the circumference length.
3. The number of pixels in the circular area [pixel]/the circumference length of the area [pixel] is calculated, and the punch hole accuracy is calculated.

4. A hole detection result is determined by comparing the punch hole accuracy with a first threshold value (hereinafter referred to as Th1) or a second threshold value (hereinafter referred to as Th2). For example, the determination is made using the threshold value determination method table 900. FIG. 9 is an explanatory diagram showing an example of the data structure of the threshold value determination method table 900. The threshold value judgment method table 900 has a judgment column 910, a judgment column 920, and a judgment column 930. Note that th1>th2.
In the judgment column 910, in the case of “Ac _i ≧th1”, it is determined that “a punch hole is determined”.
In the determination column 920, it is determined that "determination is difficult" if "th1>Ac _i ≧th2".
In the determination column 930, if "th2> _Aci ", it is determined that "it is determined that it is not a punched hole".
In other words, if the image is close to a circle, that is, if the punch hole is not collapsed, the punch hole accuracy is greater than or equal to the predetermined threshold Th1, and if it is not recognized as a punch hole, the punch hole accuracy is is less than a predetermined threshold Th2. If the punch hole accuracy is greater than the threshold Th1 and equal to or greater than the threshold Th2, it is determined that the image is similar to a punch hole, that is, a collapsed punch hole.
The size of the circular area may be determined to cover a general punch hole size. Specifically, in the case of a two-hole punch hole, ISO838 specifies a diameter of 5.5 mm to 6.5 mm, so the diameter may be around this range. The threshold Th1 and the threshold Th2 may be determined based on these values.
Punch hole accuracy may be appropriately determined by a punch hole detection method. For example, when template matching is used as a punch hole detection method, the reciprocal of the cumulative squared error may be used as the punch hole accuracy. In other words, two thresholds are prepared, and a comparison with one threshold determines that it is a punch hole, a comparison with the other threshold determines that it is not a punch hole, and if it is between both thresholds, the punch hole is determined to be a punch hole. A threshold value and a punch hole accuracy, which is a feature amount, may be set so that the image is determined to be similar to a hole. In addition to the above example, the punch hole accuracy may be the ratio of the number of black pixels between the detection circle 830 and the detection circle 832 to the number of black pixels in the case of an original punch hole.

10 and 12 are explanatory diagrams showing processing examples according to this embodiment. An example of the punch hole removal method by the punch hole removal module 130 or the processing of steps S716, S718, and S720 in the flowchart shown in FIG. 7 will be described.
In some cases, the punched hole collapses to the edge of the paper, making it difficult to determine whether it is a punched hole or not. This is a case corresponding to the judgment column 920 of the threshold judgment method table 900.
Therefore, if there is a punch hole at the same position or in the vicinity of another page different from the target page (in the flowchart shown in Figure 7, the previous page of the target page), it is necessary to fill it in the other page. Using the area information table 1100, the filling area shape is extended to the edge of the page perpendicular to the direction in which the punch holes are arranged.

(1) When Ac≧Th1 (that is, when the punch hole is not collapsed)
As shown in the example of FIG. 10(a), a punch hole is detected from an image 1001, the filling area shape 1010 is a "circle", the filling area position 1015 is "coordinates of the center position of the punch hole, and the radius is set in advance. A value obtained by adding a predetermined value is extracted, and a "vertical line passing through the centers of a plurality of punch holes" is extracted as the punch hole arrangement direction 1005 from the relationship with other punch holes. A filling area information table 1100 is generated from this information. FIG. 11 is an explanatory diagram showing an example of the data structure of the filling area information table 1100. The filling area information table 1100 has a punch hole arrangement direction column 1105, a filling area shape column 1110, and a filling area position column 1115. The punch hole arrangement direction column 1105 stores the above-mentioned punch hole arrangement direction 1005. The filling area shape column 1110 stores the aforementioned filling area shape 1010. The filling area position column 1115 stores the above-mentioned filling area position 1015.
Then, the punch holes are removed, as shown in the image 1031 after hole filling processing shown in the example of FIG. 10(b). Specifically, the filling area position 1015 of the punch hole may be filled with the surrounding color.

(2) In the case of Th1>Ac≧Th2 (in other words, in the case of a collapsed punch hole)
As shown in the example of FIG. 12(a), an image 1201 includes a punched hole 1202 that is torn. The filling area information table 1100 in other pages is used. If there is no information in the fill area information table 1100 at the same position on another page (that is, there is no punch hole at the same position on another page), no processing is performed by the punch hole removal module 130. In the flowchart shown in the example of FIG. 7, if the determination in step S714 is "No", the processes in steps S716, S718, and S720 are not performed. Note that "page i-1 (previous page)" in the flowchart shown in the example of FIG. 7 is an example of "other pages".
As shown in the example of FIG. 12(b), the punch hole alignment direction 1205 and the fill area shape 1210 are determined using the information in the fill area information table 1100 of other pages, and furthermore, the punch hole alignment direction 1205 and the fill area shape 1210 are determined. In the direction, the filling area shape 1210 is expanded to the edge of the paper to generate a filling area 1225. As described above, the direction of expansion is the direction closer to the edge of the page. In the example of FIG. 12(b), it is the left direction.
Then, as in the image 1231 after hole filling processing shown in the example of FIG. 12(c), the punched holes that are collapsed are removed. Specifically, the filling area 1225 of the collapsed punch hole may be filled with the surrounding color.

FIG. 13 is an explanatory diagram showing an example of processing according to this embodiment. FIG. 13 shows an example of processing when the punch hole does not collapse.
1st page front image 1301a shown in the example of FIG. 13(a1), 2nd page front image 1302a shown in the example of FIG. 13(a2), and 3rd page shown in the example of FIG. 13(a3) Two images, such as a front image 1303a, a 4th page front image 1304a shown in the example of FIG. 13(a4), and a 5th page front image 1305a shown in the example of FIG. 13(a5), When there are punched holes (for example, punched holes 1311a, punched holes 1321a, etc.), the accuracy of each punched hole is 0.95 and the threshold Th1 is 0.90, so in the flowchart shown in the example of FIG. The determination in S708 is "Yes". In the filling area information table 1100 for each page, for the first punch hole, the punch hole arrangement direction field 1105 is 90 degrees (vertical line), the filling area shape field 1110 is a circle, and the filling area position field 1115 is (center The coordinates are (x1, x2), the radius is x3), and for the second punch hole, the punch hole arrangement direction column 1105 is 90 degrees (vertical line), the fill area shape column 1110 is a circle, and the fill area position column 1115 is 90 degrees (vertical line). (The center coordinates are (x4, x5) and the radius is x6).
Then, for each page, a first page front image 1301b shown in the example of FIG. 13(c1), a second page front image 1302b shown in the example of FIG. ), the 3rd page front image 1303b shown in the example of FIG. 13(c4), the 4th page front image 1304b shown in the example of FIG. As shown in image 1305b, processing is performed to remove punch holes. For example, in the first page front image 1301b shown in FIG. 13(c1), the filling area 1311c surrounding the punch hole 1311a and the filling area 1321c surrounding the punch hole 1321a are filled with the respective surrounding colors. conduct.

FIG. 14 is an explanatory diagram showing an example of processing according to this embodiment. FIG. 14 shows an example of processing when the collapsed punch hole is on the fourth page, which is an intermediate page. Note that the punch holes on the other pages, 1st to 3rd pages, and 5th page, do not collapse.

For the first to third pages, the same processing as in the example of FIG. 13 is performed.
In the fourth page front image 1404a shown in the example of FIG. 14(a4), there are collapsed punch holes 1414a and punch holes 1424a. In this case, the punch hole accuracy is 0.80, which is smaller than the threshold Th1 (0.90) and greater than the threshold Th2 (0.70), so it corresponds to the judgment column 920 of the threshold judgment method table 900.
Therefore, by using the filling area information table 1100 for the third page, which is the previous page, which has punch holes at the same positions as the punch holes 1414a and punch holes 1424a of the fourth page front image 1404a, Determine. Specifically, the filling area 1413c and filling area 1423c in the third page front image 1403b are expanded to generate a filling area 1414c and a filling area 1424c. More specifically, the fourth page front image 1404b is perpendicular to a straight line passing through the centers of the filling area 1413c and the filling area 1423c (the punch hole arrangement direction, a vertical line in the example of FIG. 14(c3)). The filling area 1413c and the filling area 1423c are expanded toward the nearer end (leftward in the example of FIG. 14(c4)) to generate a filling area 1414c and a filling area 1424c.
Punch hole removal processing is performed on the filled region 1414c and the filled region 1424c.

FIG. 15 is an explanatory diagram showing an example of processing according to this embodiment. FIG. 15 shows an example of processing when there are no punch holes on the first to fourth pages and there are punch holes on the fifth page. Note that characters similar to punch holes are on the fourth page, which is an intermediate page. Specifically, the character "a" is printed on the left end of the fourth page front image 1504a. The punch hole accuracy of this part is 0.72, which corresponds to the judgment column 920 of the threshold judgment method table 900.
However, in this case, if the flowchart shown in the example of FIG. 7 is followed, it is determined that there is no punch hole in the front image 1503a of the third page, which is the previous page, so the answer is "No" in step S714, and the result is "No" in step S714. It is determined that there is no punch hole in the page number front image 1504a as well.
Note that, as described above, if the page to be referred to is not limited to the previous page but also another subsequent page, for example, the 5th page front image 1505a, the 5th page front image 1505a Since there is a punch hole, punch hole removal processing is also performed on the fourth page front image 1504a.

FIG. 16 is an explanatory diagram showing an example of processing according to this embodiment. FIG. 16 shows an example of processing when the first page has a collapsed punch hole, and the second to fifth pages have punch holes that have not collapsed.
Since the first page front image 1601a is the first page, there is no fill area information table 1100 for the previous page, so the answer is "No" in step S714 of the flowchart shown in the example of FIG.
For the second to fifth pages, the same processing as in the example of FIG. 13 is performed.
Then, when the processing of the final page is completed, step S724 of the flowchart shown in the example of FIG. 7 is performed, and the answer is "Yes". Therefore, in the example of FIG. A warning process is performed to display whether or not to perform the process.
Note that, as described above, if the punch hole filling process has not been performed on other pages of the target document, step S724 may not be performed. In other words, if such processing is used, even if there is an image similar to a punch hole on the first page, if the hole filling process has not been performed on other pages, the image will be changed to the first page. However, no punch hole filling process is performed.

FIG. 17 is a flowchart showing an example of processing according to this embodiment. This is the flowchart shown in the example of FIG. 7 with the processing of step S1718 added. In other words, if there is a page for which punch hole removal processing is not performed, a warning processing is performed.
Furthermore, as a result of the warning process, if the user performs an operation to perform punch hole removal processing, the punch hole removal process is performed using the fill area information table 1100 on another page. It's okay. For example, the other page here may be the previous page of the target page.

The processes from step S1702 to step S1724 are repeated for all pages from the first page to the last page in that order.
In step S1704, the i-th page is scanned.
In step S1706, punch holes are detected.
In step S1708, it is determined whether or not "Ac _i ≧th1". If "Ac _i ≧th1", the process advances to step S1720; otherwise, the process advances to step S1710.

In step S1710, it is determined whether "th1>Ac _i ≧th2", and if "th1>Ac _i ≧th2", the process advances to step S1712; otherwise, the process advances to step S1718.
In step S1712, the registered filling area information is extracted.
In step S1714, it is determined whether there is a punch hole at the same position on page i-1. If there is, the process advances to step S1716; otherwise, the process advances to step S1718.
In step S1716, the filling area is expanded, and the process advances to step S1720.
In step S1718, a warning is notified, and the process advances to step S1724.
In step S1720, fill area information is registered.
In step S1722, blank filling processing is performed.
In step S1724, the process from step S1702 is repeated until all pages are completed, and when all pages are completed, the process advances to step S1726.

In step S1726, it is determined whether "th1>Ac ₁ ≧th2", and if "th1>Ac ₁ ≧th2", the process proceeds to step S1728; otherwise, the process ends (step S1799). .
In step S1728, the blanks on the first page are filled in or a warning is notified to the user.

FIG. 18 is a flowchart showing an example of processing according to this embodiment. This is an example in which steps S1818, S1820, and S1822 are added to the flowchart shown in the example of FIG. In other words, even if the determination in step S1814 is "No", it is possible to cope with the case where the page is upside down. If there is a page for which punch hole removal processing is not performed, a warning processing is performed.

The processes from step S1802 to step S1828 are repeated in that order for all pages from the first page to the last page.
In step S1804, the i-th page is scanned.
In step S1806, punch holes are detected.
In step S1808, it is determined whether or not "Ac _i ≧th1". If "Ac _i ≧th1", the process advances to step S1824; otherwise, the process advances to step S1810.

In step S1810, it is determined whether "th1>Ac _i ≧th2", and if "th1>Ac _i ≧th2", the process advances to step S1812; otherwise, the process advances to step S1818.
In step S1812, the registered filling area information is extracted.
In step S1814, it is determined whether there is a punch hole at the same position on page i-1. If there is, the process advances to step S1816; otherwise, the process advances to step S1818.
In step S1816, the filling area is expanded, and the process advances to step S1824.

In step S1818, it is determined whether there is a punch hole at a symmetrical position on page i-1. If there is, the process advances to step S1820; otherwise, the process advances to step S1822. In order to cope with pages upside down, etc., if there is a similar image similar to a punch hole on the target page in a position that is symmetrical to the position of the punch hole on the previous page, the holes are considered to be continuous. Filling processing from step S1820 onwards is performed.
In step S1820, the filling area is expanded, and the process advances to step S1824. Needless to say, processing is performed to extend the filling area in the target page to a position symmetrical to the filling area in page i-1.
In step S1822, a warning is notified and the process advances to step S1828.

In step S1824, fill area information is registered.
In step S1826, hole filling processing is performed.
In step S1828, the process from step S1802 is repeated until all pages are completed, and when all pages are completed, the process advances to step S1830.
In step S1830, it is determined whether "th1>Ac ₁ ≧th2", and if "th1>Ac ₁ ≧th2", the process proceeds to step S1832; otherwise, the process ends (step S1899). .
In step S1832, the first page is filled in or a warning is notified to the user.

In the flowcharts shown in the examples of FIGS. 7, 17, and 18, "i-1 page" ("i-1 page" is the previous page of the target page) in steps S714, S1714, and S1814, It may be any other page other than the i-page. For example, it may be a page in which a punch hole is detected and which is closest to page i.

FIG. 19 is an explanatory diagram showing an example of processing according to this embodiment. 19 shows an example of processing according to the flowchart shown in the example of FIG. 18. FIG. 19 shows an example of processing when the collapsed punch hole is on the fourth page, which is an intermediate page, and the fourth page is upside down from the other pages. Note that the other pages, 1st to 3rd pages and 5th page, have no punch holes and are erect.

For the 1st to 3rd pages and the 5th page, the same processing as in the example of FIG. 13 is performed.
In the fourth page front image 1904a shown in the example of FIG. 19(a4), there are collapsed punch holes 1914a and punch holes 1924a. In this case, the punch hole accuracy is 0.80, which is smaller than the threshold Th1 (0.90) and greater than the threshold Th2 (0.70), so it corresponds to the judgment column 920 of the threshold judgment method table 900.
Therefore, the filling area information table 1100 for the third page, which is the previous page, which has punch holes at positions symmetrical to the positions of punch holes 1914a and punch holes 1924a of the front image 1904a of the fourth page, is used to fill the area. Determine the area. Specifically, the padding region 1913c and padding region 1923c in the third page front image 1903b are expanded and symmetrical transformation is performed to generate padding region 1914c and padding region 1924c. More specifically, the line that is perpendicular to the straight line passing through the centers of the filling area 1913c and the filling area 1923c (the punch hole arrangement direction, the vertical line in the example of FIG. 19(c3)) is symmetrically transformed, and the fourth page is The filling area 1913c and the filling area 1923c are expanded toward the nearer end of the front image 1904b (rightward in the example of FIG. 19(c4)), and the filling area 1914c and the filling area 1924c are expanded. generate. Note that the punch holes 1914a and punch holes 1924a in the fourth page front image 1904b may be expanded to generate a fill area 1914c and a fill area 1924c.
Punch hole removal processing is performed on the filled region 1914c and the filled region 1924c.

In addition, in the comparison process in the description of the above-mentioned embodiment, "more than", "less than or equal to", "greater than", and "less than (less than)" are examples, and the combinations are contradictory. As long as this does not occur, "greater than", "less than", "greater than", and "less than or equal to" may be used, respectively.

Note that in the above embodiments, the processor refers to a processor in a broad sense, and includes a general-purpose processor (eg, CPU, etc.) and a dedicated processor (eg, GPU, ASIC, FPGA, programmable logic device, etc.).
Further, the operations of the processor in the above embodiments may be performed by one processor, or may be performed not only by one processor, but also by multiple processors located at physically distant locations working together. It may be something that is done. Further, the order of each operation of the processor is not limited to the order described in the above embodiments, and may be changed as appropriate.

Note that the program described above may be provided by being stored in a recording medium, or may be provided by means of communication. In that case, for example, the program described above may be regarded as an invention of "a computer-readable recording medium on which a program is recorded."
A "computer-readable recording medium on which a program is recorded" refers to a computer-readable recording medium on which a program is recorded, which is used for program installation, execution, program distribution, etc.
Examples of recording media include digital versatile discs (DVDs), such as "DVD-R, DVD-RW, DVD-RAM, etc.", which are the standards established by the DVD Forum, and DVD+RW, which is the standard established by the DVD Forum. standard "DVD+R, DVD+RW, etc.", compact disc (CD), read-only memory (CD-ROM), CD recordable (CD-R), CD rewritable (CD-RW), etc., Blu-ray disc ( Blu-ray (registered trademark) Disc), magneto-optical disk (MO), flexible disk (FD), magnetic tape, hard disk, read-only memory (ROM), electrically erasable and rewritable read-only memory (EEPROM (registered trademark) )), flash memory, random access memory (RAM), SD (abbreviation for Secure Digital) memory card, etc.
The entire program or a portion thereof may be recorded on the recording medium and stored or distributed. Also, by communication, for example, a local area network (LAN), a metropolitan area network (MAN), a wide area network (WAN), a wired network used for the Internet, an intranet, an extranet, etc., or wireless communication. It may be transmitted using a transmission medium such as a network or a combination thereof, or it may be carried on a carrier wave.
Further, the above program may be part or all of another program, or may be recorded on a recording medium together with a separate program. Further, the information may be divided and recorded on a plurality of recording media. Further, the data may be recorded in any format, such as compression or encryption, as long as it can be restored.

100... Image processing device 105... Reading module 110... Punch hole detection module 115... First stage detection module 120... Second stage detection module 125... Punch hole information storage module 130... Punch hole removal module 135... Image storage module 140... Output Module 200... Image processing device 205... Image input module 210... Image processing module 215... Detection module 230... Image forming module 240... Image output module 250... Memory 255... CPU
260...ROM
265...Communication module 270...Operation panel

Claims (3)

Equipped with a processor,
The processor includes:
When a similar image similar to a punch hole is detected from the first page of a multi-page document read by the reading means, the punch hole is detected on a second page of the document that is different from the first page. if the similar image is removed ;
the first page indicates one page of the document;
To detect the similar image, a first threshold value for detecting it as a punch hole and a second threshold value for detecting it as not a punch hole are used, and the target image in the first page is set to the first threshold value. and the second threshold, the target image is detected to be a similar image similar to a punch hole,
When detecting the punch hole, if the target image in the second page is equal to or larger than the first threshold value, detecting the target image as a punch hole;
What is compared with the first threshold value or the second threshold value is any of the feature amount of the target image, the distance between the official punch hole image and the target image in the feature space, and the punch hole accuracy. It is
The removal is performed by embedding a color that is the same as the surrounding color of the similar image,
In the removal process performed by the processor,
If the first page is the first page or the last page of the document, the similar image is removed without a warning, and if the first page is an intermediate page, a warning is issued and the user's operation is Therefore, remove
An image processing device characterized by: The processor includes:
If the position of the similar image in the first page is at the same position or symmetrical position to the punch hole in the second page, removing the similar image;
The image processing device according to claim 1. computer,
When a similar image similar to a punch hole is detected from the first page of a multi-page document read by the reading means, the punch hole is detected on a second page of the document that is different from the first page. function as a removal means for removing the similar images in the case of
the first page indicates one page of the document;
To detect the similar image, a first threshold value for detecting it as a punch hole and a second threshold value for detecting it as not a punch hole are used, and the target image in the first page is set to the first threshold value. and the second threshold, the target image is detected to be a similar image similar to a punch hole,
When detecting the punch hole, if the target image in the second page is equal to or larger than the first threshold value, detecting the target image as a punch hole;
What is compared with the first threshold value or the second threshold value is any of the feature amount of the target image, the distance between the official punch hole image and the target image in the feature space, and the punch hole accuracy. It is
The removal is performed by embedding a color that is the same as the surrounding color of the similar image,
In the removal process performed by the computer ,
If the first page is the first page or the last page of the document, the similar image is removed without a warning, and if the first page is an intermediate page, a warning is issued and the user's operation is Therefore, remove
Image processing program.

Images