JPH10164347A - Image reader - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image reader in which a black image at a peripheral part of a patched part in a patched original, an inside spread part of an inside folded original and an image of a half page are deleted as required. SOLUTION: An original 8 having a patched part whose a peripheral part is marked in red is set to an image reader 1 and when red delete processing is selected by a selection key, an image sensor part 2 reads an image of the original 8. Analog image data outputted from the image sensor part 2 are converted into digital image data by an image read processing part 3 to output to a red level inversion processing part 4 and a black/white level processing part 5. The red level inversion processing part 4 detects image data in a red level of a red marking from the digital image data and inverts the image data in the red level into a white level to output to an OR circuit 6. The black/white level processing part 5 applies black/white binarization processing to the digital image data to output to the OR circuit 6 and the OR circuit 6 applies OR processing to the image data from the red level inversion processing part 4 and the black/white level processing part 5 to output to a print part 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an image reading apparatus, and more particularly, to an image reading apparatus for appropriately erasing unnecessary images when a document is read.

[0002]

2. Description of the Related Art In an image reading apparatus such as a scanner, a copying apparatus, and a facsimile apparatus, when a cut original or a center-open document is read, the periphery of the cut portion of the cut original or the center folding of the center-open document is read. The part is read as an unnecessary black line, and the image quality of the read image deteriorates.

In an image reading apparatus, it is important to improve the image quality of a read image by deleting an unnecessary black line image when reading such a cut original or a center open original. It is a problem.

Therefore, conventionally, detecting means for detecting that all image data read by the image sensor for each line is a black image over the width of the document, and detecting the line data based on a detection output by the detecting means. There has been proposed a reading apparatus which includes image inversion processing means for inverting each image data from a black image to a white image, and outputs image data inverted by the image inversion processing means (Japanese Patent Laid-Open No. 1-218262). Reference).

According to this reading apparatus, all black images can be inverted into white images over the width direction of the document.

[0006]

However, in such a conventional image reading apparatus, when all black images are detected in the width direction of the document, the black image is inverted to a white image. Unless a black image of the document width is detected, the black image cannot be deleted, the black image around the cut portion of the cut document cannot be deleted, and cannot be applied to the cut document. There was a problem. Further, in the above-described conventional image reading apparatus, there is a problem that if a black image that should not be erased is included depending on the contents of the document, it is erroneously detected and erased. Further, in the above-described conventional image reading apparatus, when an image of a half page from the black line at the center folded portion of the center-opened document is unnecessary, the image information of the unnecessary half image can be deleted. Can not.

Therefore, the invention according to claim 1 irradiates light from a light source to a cut original having a cut portion and a peripheral portion of the cut portion with a red marking, and cuts the light by the reflected light. Detects red level image data of the marking from the image data obtained by reading the image of the stretched original, and converts / non-converts the detected red level image data to white level image data according to the selection result. By selectively outputting the image data obtained by deleting the image data of the black image at the periphery of the cut portion and the image data including the image data of the black image at the periphery of the cut portion. In addition to appropriately deleting the black image around the cut portion of the stretched original and, if necessary, leaving the black image around the cut portion, the image can be processed more appropriately. And its object is to provide a reading device.

According to a second aspect of the present invention, light from a light source is radiated to a center-open document through a transparent film means having a marking area colored red at a position corresponding to the center-fold portion of the center-open document. Then, from the image data obtained by reading the image of the center-opening document by the reflected light, the red level image data of the marking area of the film means is detected, and according to the selection result, the detected red level image data is detected. Image data obtained by performing conversion / non-conversion to the image data of the white level and deleting the image data of the black image of the half-fold part, image data including the image data of the black image of the half-fold part,
By selectively outputting, the black image of the center fold part of the center-opening document is appropriately deleted, and if necessary,
It is an object of the present invention to provide an image reading apparatus that can perform more appropriate image processing while also retaining the black image of the center folded portion.

According to a third aspect of the present invention, there is provided an image processing apparatus, comprising: a center opening document; By irradiating the original with light from a light source and detecting the red-level image data of the marking area of the film means from the image data obtained by reading the image of the center-opened original by the reflected light, according to the selection result, Conversion / non-conversion of the detected red-level image data to white-level image data is performed, and the image data obtained by deleting the image data of the half-folded portion and half a page and all the image data of the center-opened document are converted. By selectively outputting, it is possible to properly delete the half-page image of the center-opened document,
It is an object of the present invention to provide an image reading apparatus that can output images of all pages of the center-opened document as necessary and can perform more appropriate image processing.

[0010]

According to a first aspect of the present invention, there is provided an image reading apparatus comprising: a light source which emits light to a cut original having a cut portion and a red mark on a peripheral portion of the cut portion. Scanner means for irradiating and reading the image of the cut-out original with the reflected light and outputting analog image data; and image processing means for converting the analog image data output by the scanner means into at least digital image data Selecting means for selectively instructing execution / non-execution of deletion of a black image at the periphery of the cut portion of the cut document; and a red level of the marking in the digital image data output by the image processing means. Of the red level image data to white level image data in accordance with the selection result of the selecting means. Red level processing means for performing conversion / non-conversion to output white level image data or black level image data; and converting the digital image data output from the image processing means into white level and black level image data. A black-and-white level processing unit for performing a binarization process; an image data synthesizing unit for synthesizing the image data output from the red level processing unit and the image data output from the black-and-white level processing unit; When the execution of the deletion of the black image on the periphery of the cut portion of the center-open document is selected, the inversion operation of the red-level image data to the white-level image data by the red-level processing means is enabled. The image data obtained by deleting the image data of the black image at the periphery of the cut portion is output. When non-execution of image deletion is selected, the inversion operation of the red level image data to the white level image data by the red level processing unit is invalidated, and the black image of the periphery of the cutout portion is The above object is achieved by also outputting image data.

According to the above arrangement, a light source is irradiated with light from a light source to a cut original having a cut portion, and a peripheral portion of the cut portion is provided with a red marking, and an image of the cut original is reflected by the reflected light. From the read image data, the red level image data of the marking is detected, and the detected red level image data is converted / non-converted into the white level image data according to the selection result, The image data obtained by deleting the image data of the black image at the periphery of the cut portion and the image data including the image data of the black image at the periphery of the cut portion are selectively output. The black image around the portion can be appropriately deleted, and if necessary, the black image around the cutout portion can be left, so that more appropriate image processing can be performed. .

According to a second aspect of the present invention, there is provided an image reading apparatus which irradiates light from a light source to a center-opened document having a center-folded portion, reads the image of the cut-out document by reflected light thereof, and outputs analog image data. Scanning means, a film means having a marking area which is in close contact with the center-opened document, transmits light from the scanner means, and has a red marking area on the center-folded portion of the center-opened document, and the scanner means Image processing means for converting the analog image data output by the image processing apparatus into at least digital image data; selecting means for selectively instructing execution / non-execution of deletion of the black image in the center fold portion of the center-open document; Detecting, from the digital image data output by the image processing means, red level image data of the marking area of the film means; A red level for converting / non-converting the detected red level image data to white level image data and outputting white level image data or black level image data in accordance with the selection result of the selecting means; Processing means for converting the digital image data output from the image processing means into white level and black level image data;
A black-and-white level processing unit that performs a binarization process; and an image data combining unit that combines the image data output by the red level processing unit and the image data output by the black-and-white level processing unit. When the execution of the deletion of the black image of the center folded portion is selected, the inversion operation of the red level image data to the white level image data by the red level processing unit is enabled, and the film unit of the film unit is enabled. When the image data of the black image of the center fold portion covered with the marking area is deleted and the non-execution of the deletion of the black image of the center fold portion is selected by the selection unit, the red level is output. Invalidating the inversion operation of the red level image data to the white level image data by the processing means, and also outputs the image data of the black image of the center fold portion As a result, it has achieved the above object.

According to the above construction, the light is irradiated from the light source to the center-opening document through the transparent film means having a marking area colored red at a position corresponding to the center-fold portion of the center-opening document. From the image data obtained by reading the image of the center-opening document by the reflected light, the red level image data of the marking area of the film means is detected, and according to the selection result, the white level of the detected red level image data is detected. Image data from which the black image data of the half-fold part has been deleted and image data including the image data of the black image of the half-fold part by selectively converting / non-converting to the image data of Therefore, it is possible to appropriately delete the black image of the center-folded portion of the center-opened document, and, if necessary, to retain the black image of the center-folded portion, and perform more appropriate image processing. It is possible.

According to a third aspect of the present invention, there is provided an image reading apparatus which irradiates light from a light source to a center-open document having a center-folded portion, reads the image of the cut-out document by reflected light thereof, and outputs analog image data. And a scanner that is in close contact with the center-opened document, transmits light from the scanner unit, and applies red from the center-folded portion of the center-opened document to one of the left and right pages of the center-opened document. Film means having a marked area, image processing means for converting analog image data output from the scanner means into at least digital image data, and execution / non-execution of the half-page deletion of the center-open document. Selecting means for instructing selection, and the marking of the film means in the digital image data output by the image processing means Detects the image data of red level range, depending on the selection result of the selecting means, the conversion to the image data of the white level of the image data of the detected red level /
Red level processing means for performing non-conversion to output white level image data or black level image data, and binary conversion of the digital image data output from the image processing means into white level and black level image data Black-and-white level processing means for performing a conversion process, and image data synthesizing means for synthesizing the image data output from the red level processing means and the image data output from the black-and-white level processing means,
When the execution of the half-page deletion is selected by the selection unit, the inversion operation of the red-level image data to the white-level image data by the red-level processing unit is enabled, and the marking of the film unit is performed. Outputting half-page image data from the half-folded portion of the half-open document covered with the area, and selecting the non-execution of the half-page deletion by the selection means; Invalidating the inversion operation of the red level image data to the white level image data by processing means,
The above object is achieved by outputting all image data of the center-open document.

[0015] According to the above arrangement, the center-opening document is applied to the center-opening document via the transparent film means having a marking area colored red on one of the right and left pages from the position corresponding to the center-folded portion. By irradiating light from the light source, from the image data of reading the image of the center-open document by the reflected light, the image data of the red level of the marking area of the film means is detected, and according to the selection result, the detection is performed. The conversion / non-conversion of the red-level image data to the white-level image data is performed, and the image data obtained by deleting the image data of the half-folded portion and the half-page and all the image data of the center-open document are selectively selected. Output, so that the half-page image of the center-opened document can be properly deleted,
If necessary, images of all pages of the center-open document can also be output, and more appropriate image processing can be performed.

[0016]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. It should be noted that the embodiments described below are preferred embodiments of the present invention, and therefore, various technically preferable limitations are added. However, the scope of the present invention is not limited to the following description. The embodiments are not limited to these embodiments unless otherwise specified.

FIGS. 1 to 4 show a first embodiment of an image reading apparatus according to the present invention. In this embodiment, a black line (black image) around a cut portion of a cut original is shown. ) Is deleted as necessary, and corresponds to claim 1.

FIG. 1 is a block diagram of a main part of an image reading apparatus 1 to which an image reading apparatus according to a first embodiment of the present invention is applied. 1, the image reading device 1 includes an image sensor unit 2, an image reading processing unit 3, a red level inversion processing unit 4, a white / black level processing unit 5, an OR circuit 6, a printing unit 7, and the like.

The image reading device 1 is not shown, but
An operation display unit is provided, and the operation display unit is provided with operation keys for instructing the image reading apparatus 1 to perform various operation such as a reading operation. In particular, the operation display section is provided with a selection key (selection means) for selecting whether or not to delete the red level, that is, whether to delete the black image (black line) on the periphery of the cut section 9 of the cut original 8. For example, the image reading apparatus 1 enables / disables the inversion operation of the red level inversion processing section 4 to the white label according to the selection state of the selection key, thereby changing the red level of the image data. Delete / non-delete.

The image sensor unit (scanner means) 2
A light source, an optical system, a CCD (Charge Coupled Device) image sensor, and the like are provided. The light source irradiates the cut original 8 with light, and the reflected light reflected by the cut original 8 is transmitted to the CCD image sensor via the optical system. Then, the CCD image sensor outputs analog image data corresponding to the amount of input light to the image reading processing unit 3. As shown in FIG. 2, the cut original 8 has a cut portion 9 attached thereto. The periphery of the cut portion 9 is marked with a red marker or the like, including the peripheral portion of the cut portion 9, by red marking. 10
Is given. The image sensor unit 2 reads the image of the cut original 8 on which the cut unit 9 has been cut, including the red marking 10, and outputs the read image to the image reading processing unit 3.

The image reading processing section (image processing means) 3
It has an image processing circuit such as a / D conversion circuit and a shading correction circuit, converts analog image data input from the image sensor unit 2 into digital image data, and performs necessary image processing such as shading correction. ,
The digital image data is output to the red level inversion processing section 4 and the white / black level processing section 5.

Red level inversion processing section (red level processing means)
4 detects red level image data by comparing digital image data input from the image reading processing unit 3 with a predetermined threshold value, and displays the red level image data on a selection key of the operation display unit. Is inverted to a white level or output as black level image data to the OR circuit 6.

The white / black level processing unit (black and white level processing means) 5 compares digital image data input from the image reading processing unit 3 with a predetermined threshold value,
The white / black detection is performed, a binarization process is performed to a white level and a black level, and the binarized image data is output to the OR circuit 6.

That is, as shown in FIG. 3, the digital image data input from the image reading processing unit 3 includes a white level WL, a red level RL, and a black level BL for each pixel.
The red level inversion processing unit 4 compares the digital image data with a predetermined threshold to detect only the red level RL image data, and detects the detected red level RL image data. Is converted to white level WL image data or output to the OR circuit 6 as black level image data according to the selection result of the selection key on the operation display unit. The white / black level processing unit 5
By comparing the digital image data input from the image reading processing unit 3 with a predetermined threshold value, the white level WL and the black level BL are detected, binarized, and the binarized image data is converted to an OR circuit 6. Output to

The OR circuit (image data synthesizing means) 6 takes the OR of the image data input from the red level inversion processing section 4 and the image data input from the white / black level processing section 5 and sends it to the printing section 7. Output. That is, the OR circuit 6 combines the binarized image data of the white / black level processing unit 5 with the image data output by the red level inversion processing unit 4 and outputs the resultant to the printing unit 7.

The printing unit 7 uses, for example, an electrophotographic recording device, and records and outputs an image on recording paper based on image data input from the OR circuit 6.

Next, the operation of this embodiment will be described. The image reading apparatus 1 is characterized in that the black line image data around the cut portion 9 of the cut document 8 is appropriately deleted.

In order for the image reading apparatus 1 to read an image of the cut original 8 having the cut portion 9 with the black line around the cut portion 9 deleted, the operator needs to cut the cut document 9 having the cut portion 9. As shown in FIG. 2, a red marking 10 is applied to the periphery of the cutout portion 9 of the original document 8 with a red marker or the like, and the original document 8 with the red marking 10 is read by the image reading device 1. Let In addition,
When it is desired to leave the black line around the cut portion 9 of the cut original 8 without deleting it, the cut original 8 is read without the red marking 10 on the cut original 8. May be read or the marking 10
If the user wants to keep the black line around the cutout 9 of the cut original 8 having the cutout 9 with the cutout, without deleting the black line, the red level is deleted by the selection key of the operation display section. Make no choice.

That is, as shown in FIG. 4, the image reading device 1
Is set (step S).
1) It is checked whether the red deletion processing is selected by a selection key of the operation display unit (not shown) (step S2). If the red deletion processing is not selected, it is waited for the start key of the operation display unit to be turned on. A normal reading process is performed (Step S3). In this case, the image reading device 1 reads the image of the cut original 8 by the image sensor unit 2 and
The analog image data is output to the image reading processing unit 3, the analog image data is converted into digital image data by the image reading processing unit 3, and necessary image processing such as shading correction is performed. The image data is output to the red level inversion processing section 4 and the white / black level processing section 5. The red level inversion processing unit 4 detects red level image data by comparing the image data input from the image reading processing unit 3 with a predetermined threshold value, and inverts the red level image data to a white level. Instead, the image data is output to the OR circuit 6 as black level image data. The white / black level processing unit 5 compares the digital image data input from the image reading processing unit 3 with a predetermined threshold value, detects white / black, and outputs the white / black level by two. The binarization processing is performed, and the binarized image data is output to the OR circuit 6. The OR circuit 6 takes the OR of the image data input from the red level inversion processing section 4 and the image data input from the white / black level processing section 5 and outputs the OR to the printing section 7. The image is recorded on a recording sheet based on the image data input from the circuit 6.

Therefore, when red deletion is not selected by the selection key, image data including a black image on the periphery of the cutout portion 9 of the cutout original 8 is output from the OR circuit 6 to the printing portion 7, and the printing portion 7 outputs the image data. The image of the cut original 8 including the black image of the periphery of the cut portion 9 is recorded and output.

When the red erasure process is selected in step S2, the image reading apparatus 1 sets a red erasure process command (step S4), drives the image sensor unit 2, and drives the image of the cut original 8 Is started (step S5). Document 8 cut by image sensor unit 2
The image reading unit 3 reads the image of each level of white, red, and black, converts the analog image data read by the image sensor unit 2 into digital image data by the image reading processing unit 3, and performs image processing such as shading correction. To give
Output to the red level inversion processing section 4 and the white / black level processing section 5 (step S6).

Next, the white / black level processing and the red level processing are performed by the white / black level processing section 5 and the red level inversion processing section 4 (step S7). That is, the white / black level processing unit 5
Compares the digital image data input from the image reading processing unit 3 with a predetermined threshold value, detects white / black, performs binarization processing, and ORs the binarized image data. Output to the circuit 6. The red level inversion processing section 4
Detects red level image data by comparing digital image data input from the image reading processing unit 3 with a predetermined threshold value, inverts the red level image data to a white level, and OR Output to the circuit 6. And
The image reading device 1 causes the OR circuit 6 to OR-process the image data obtained by inverting the red level of the red level inversion processing unit 4 and the image data processed by the white / black level processing unit 5, and output the OR data to the printing unit 7. (Step S8). The printing unit 7 records and outputs an image on recording paper based on the image data input from the OR circuit 6. Therefore, when red deletion is selected, the red level is inverted to the white level by the red level inversion processing section 4, and the image data output from the red level inversion processing section 4 inverted to the white level and the white / black level are output. The OR circuit 6 performs OR processing on the image data output from the processing unit 5 and outputs the image data to the printing unit 7. As a result, the image in which the black line on the periphery of the cutout portion 9 of the cutout original 8 is deleted is displayed on the printing unit 7.
Is recorded on the recording paper.

As described above, according to the image reading apparatus 1 of the present embodiment, the cut portion 9 is provided.
Light from a light source irradiates the cut original 8 having a red marking 10 on the periphery thereof, and reads the image of the cut original 8 by the reflected light. Is detected by the red level inversion processing unit 4, and the detected red level image data is converted / non-converted into white level image data in accordance with the selection result of the selection key, and Image data obtained by deleting the image data of the peripheral black image, image data including image data of the peripheral black image of the cutout portion 9,
Can be selectively output. As a result, the black image around the cut portion 9 of the cut original document 8 can be appropriately deleted, and the black image around the cut portion 9 can be left as necessary. Appropriate image processing can be performed.

FIGS. 5 to 7 show a second embodiment of the image processing apparatus according to the present invention. In this embodiment, a black line at the center folding portion of a center-open document is selected. This is deleted according to claim 2, and corresponds to claim 2. Note that the present embodiment is applied to an image reading device similar to the image reading device of the first embodiment, and in the description of the present embodiment, the image reading device shown in FIG. The same components are denoted by the same reference numerals, and detailed description thereof will be omitted.

FIG. 5 shows an image reading apparatus 20 according to this embodiment.
The image reading apparatus 20 includes an image sensor section 2, an image reading processing section 3, a red level inversion processing section 4, a white level image forming section, and a white section, similarly to the image reading apparatus 1 according to the first embodiment. / Black level processing unit 5, OR circuit 6, printing unit 7, etc., and erase film 21.

Erase film (film means) 21
As shown in FIG. 6, is set so as to be in close contact with the reading surface of the center-opened document 22, and the entire surface is formed transparent.
a, a red band-shaped red marking area 21a corresponding to a
Is given. The erase film 21 has a size corresponding to various document sizes of the center-open document 22 of various document sizes, and is set on the reading surface of the center-open document 22 according to the size of the center-open document 22.

That is, as shown in FIG. 7, the image reading device 20 reads the image of
When the middle original 22 is set (step P1), it is checked whether or not the red deletion processing is selected by a selection key of an operation display unit (not shown) (step P2). Normal reading processing is performed after the start key is pressed (step P
3). In this case, the image reading apparatus 1 reads the image of the center-opening document 22 by the image sensor unit 2 and outputs analog image data to the image reading processing unit 3 as in the above-described embodiment. The analog image data is converted into digital image data in 3 and necessary image processing such as shading correction is performed, and the digital image data is sent to the red level inversion processing section 4 and the white / black level processing section 5. Output. The red level inversion processing unit 4 detects red level image data by comparing the image data input from the image reading processing unit 3 with a predetermined threshold value, and inverts the red level image data to a white level. Instead, the image data is output to the OR circuit 6 as black level image data. The white / black level processing unit 5 compares the digital image data input from the image reading processing unit 3 with a predetermined threshold value, detects white / black, and outputs the white / black level by two. The binarization processing is performed, and the binarized image data is output to the OR circuit 6. The OR circuit 6 takes the OR of the image data input from the red level inversion processing section 4 and the image data input from the white / black level processing section 5 and outputs the OR to the printing section 7. An image is recorded and output on recording paper based on the image data input from.

Therefore, when red deletion is not selected by the selection key, the center folded portion 22a
The image data including the black image is sent from the OR circuit 6 to the printing unit 7.
The printing unit 7 records and outputs the image of the center-open document 22 including the black image of the center-folded portion 22a.

If the red erasure process is selected in step P2, the image reading device 20 sets a red erasure process command (step P4), and the erase film 21 is set on the front side of the document 22 with the center open. (Step P5), the image sensor unit 2 is driven, and
The reading of the second image is started (step P6). The image sensor unit 2 reads the white, red, and black images of the center-open document 22 at each level, and converts the analog image data read by the image sensor unit 2 into digital image data by the image reading processing unit 3. , And performs necessary image processing such as shading correction and outputs the result to the red level inversion processing unit 4 and the white / black level processing unit 5 (step P
7).

Next, the image reading device 20 performs each processing of the white / black level and the red level by the white / black level processing section 5 and the red level inversion processing section 4 (step P8). That is, the white / black level processing unit 5 detects white / black by comparing digital image data input from the image reading processing unit 3 with a predetermined threshold value, and performs binarization processing. , 2
The digitized image data is output to the OR circuit 6. Further, the red level inversion processing section 4 compares the digital image data input from the image reading processing section 3 with a predetermined threshold value to thereby determine the red marking area 2 of the erase film 21.
The red level image data 1a is detected, the red level image data is inverted to a white level, and output to the OR circuit 6. Then, the image reading apparatus 1 causes the OR circuit 6 to OR-process the image data obtained by inverting the red level of the red level inversion processing unit 4 and the image data processed by the white / black level processing unit 5, and (Step P9). The printing unit 7 records and outputs an image on recording paper based on the image data input from the OR circuit 6. Therefore, when red deletion is selected, the red level is inverted to the white level by the red level inversion processing unit 4, and the image data output from the red level inversion processing unit 4 inverted to the white level and the white / black level are output. The OR circuit 6 performs OR processing on the image data output from the processing unit 5 and outputs the image data to the printing unit 7. as a result,
The image in which the black line of the center folded portion 22a of the center-open document 22 is deleted is recorded and output on the recording paper by the printing unit 7.

As described above, according to the image reading apparatus 20 of the present embodiment, the transparent erase film 21 having the red marking area 21a applied to red at the position corresponding to the center folded portion 22a of the center-open document 22. Irradiates light from the light source to the center-opening document 22 through the interface, and reads the red-level image data of the red marking area 21a of the erase film 21 from the image data obtained by reading the image of the center-opening document 22 by the reflected light. Detected, and in accordance with the selection result of the selection key for red deletion, conversion / non-conversion of the detected red level image data to white level image data is performed, and the image data of the black image of the half-fold portion 22a is obtained. And the image data including the image data of the black image of the center fold portion 22a can be selectively output. As a result, the black image of the center-folded portion 22a of the center-opened document 22 can be appropriately deleted, and the black image of the center-folded portion 22a can be left as necessary, so that more appropriate image processing can be performed. It can be performed.

FIGS. 8 to 10 are diagrams showing a third embodiment of the image processing apparatus according to the present invention. In this embodiment, an image of a half page from the center of a center-open document is selected. , And corresponds to claim 3. Note that this embodiment is applied to an image reading apparatus similar to the image reading apparatus of the second embodiment, and in the description of this embodiment, the image reading apparatus shown in FIG. The same components are denoted by the same reference numerals,
A detailed description thereof will be omitted.

FIG. 8 shows an image reading apparatus 30 according to this embodiment.
The image reading device 30 includes an image sensor unit 2, an image reading processing unit 3, a red level inversion processing unit 4, and a white level, similar to the image reading device 20 according to the second embodiment. / Black level processing unit 5, OR circuit 6, and printing unit 7
And the like, and an erase film 31 is provided.

Erase film (film means) 31
As shown in FIG. 9, is set so as to be in close contact with the reading surface of the center-opened document 22, the entire surface is formed transparent, and
A red marking region 31a is provided on the entire surface of a half page from the portion corresponding to a. Erase film 31
Are prepared in sizes corresponding to various document sizes of the center-open document 22 of various document sizes, and are set on the reading surface of the center-open document 22 in accordance with the size of the center-open document 22.

The image reading device 30 according to the present embodiment is similar to the image reading device shown in FIG.
As shown at 0, an image reading process is performed. In FIG. 10, the same processing steps as those in FIG. 8 of the second embodiment are denoted by the same step numbers, and detailed description thereof will be omitted.

That is, as shown in FIG. 10, the image reading device 30 reads the image of the above-described center-opening document 22 when the center-opening document 22 is set (step P).
1) It is checked whether the red deletion processing is selected by a selection key of the operation display unit (not shown) (step P2). If the red deletion processing is not selected, the system waits for the start key of the operation display unit to be turned on. A normal reading process is performed (Step P3). In this case, the image reading device 30 reads the image of the center-opening document 22 by the image sensor unit 2 and outputs analog image data to the image reading processing unit 3 as in the above-described embodiment. At 3, the analog image data is converted into digital image data.
Further, it performs necessary image processing such as shading correction and outputs digital image data to the red level inversion processing unit 4 and the white / black level processing unit 5. The red level inversion processing unit 4 detects red level image data by comparing the image data input from the image reading processing unit 3 with a predetermined threshold value, and inverts the red level image data to a white level. Instead, the image data is output to the OR circuit 6 as black level image data. The white / black level processing unit 5 compares the digital image data input from the image reading processing unit 3 with a predetermined threshold value, detects white / black, and outputs the white / black level by two. The binarization processing is performed, and the binarized image data is output to the OR circuit 6. The OR circuit 6 takes the OR of the image data input from the red level inversion processing section 4 and the image data input from the white / black level processing section 5 and outputs the OR to the printing section 7. An image is recorded and output on recording paper based on the image data input from.

Therefore, when red deletion is not selected by the selection key, the center folded portion 22a
The image data of the page covered by the black image and the red marking area 31a of the erase file 31 is output from the OR circuit 6 to the printing unit 7, and the printing unit 7 causes the center folded portion 22a and the red marking area 31a of the erase file 31 to be output. All the images of the center-opening document 22 including the black image of the page covered with are recorded and output.

If the red erasing process is selected in step P2, the image reading device 30 sets a red erasing process command (step P4), and the erase film 31 is set on the front side of the document 22 with the center open. (Step P11), the image sensor unit 2 is driven to start reading an image of the center-open document 22 (Step P6). In this case, the red marking area 31 of the erase film 31
The erase film 31 is set so that “a” is located on an unnecessary page of the center-open document 22.

Next, an image of each level of white, red and black of the center-open document 22 is read by the image sensor unit 2, and
The image reading unit 3 converts the analog image data read by the image sensor unit 2 into digital image data, performs necessary image processing such as shading correction, and performs a red level inversion processing unit 4 and a white / black level Processing unit 5
(Step P7).

Next, each processing of the white / black level and the red level is performed by the white / black level processing section 5 and the red level inversion processing section 4 (step P8). That is, the white / black level processing unit 5
Compares the digital image data input from the image reading processing unit 3 with a predetermined threshold value, detects white / black, performs binarization processing, and ORs the binarized image data. Output to the circuit 6. The red level inversion processing section 4
Detects red level image data by comparing digital image data input from the image reading processing unit 3 with a predetermined threshold value, inverts the red level image data to a white level, and OR Output to the circuit 6. And
The image reading device 30 causes the OR circuit 6 to OR-process the image data obtained by inverting the red level of the red level inversion processing unit 4 and the image data processed by the white / black level processing unit 5, and outputs the OR data to the printing unit 7. (Step P9). The printing unit 7 records and outputs an image on recording paper based on the image data input from the OR circuit 6. Therefore, when red deletion is selected, the red level is inverted to the white level by the red level inversion processing unit 4, and the image data output from the red level inversion processing unit 4 inverted to the white level and the white / black level are output. The OR circuit 6 performs OR processing on the image data output from the processing unit 5 and outputs the image data to the printing unit 7. As a result, the middle open document 22
The deleted image of the image of the page covered by the black line of the center folded portion 22a and the red marking area 31a of the erase film 31 is recorded and output on recording paper by the printing unit 7.

As described above, according to the image reading apparatus 30 of the present embodiment, the red marking area applied to the entire left or right page from the position corresponding to the center folded portion 22a of the center-open document 22 in red. Light is radiated from the light source to the center-opening document 22 via the transparent erase film 31 having the erasing film 31a.
The red level image data in the red marking area 31a is detected, and the red level inversion processing unit 4 converts the detected red level image data into white level image data in accordance with the selection result of the selection key for red deletion. Conversion / non-conversion of
It is possible to selectively output the image data obtained by deleting the image data of the half-folded portion 22 a and the half-page of the center-open document 22 and all the image data of the center-open document 22. As a result, it is possible to appropriately delete the image of the half-page of the center-open document 22 and to output the image of all the pages of the center-open document 22 as necessary. It can be performed.

As described above, the invention made by the inventor has been specifically described based on the preferred embodiments. However, the present invention is not limited to the above, and various modifications can be made without departing from the gist of the invention. It goes without saying that it is possible.

[0053]

According to the image reading apparatus of the first aspect of the present invention, a light source irradiates light to a cut original having a cut portion and a red mark on a peripheral portion of the cut portion. Then, from the image data obtained by reading the image of the cut original by the reflected light, the red level image data of the marking is detected, and the white level image data of the detected red level image data is detected according to the selection result. Image data from which the image data of the black image at the periphery of the cutout portion has been deleted by performing conversion / non-conversion to the image data, and image data also including image data of the black image at the periphery of the cutout portion. Since the output, the black image around the cut portion of the cut document can be appropriately deleted, and if necessary, the black image around the cut portion can be left. Image processing can be performed.

According to the image reading apparatus of the second aspect of the present invention, the center-opening document is printed on the center-opening document via a transparent film means having a red marked area at a position corresponding to the center-fold portion of the center-opening document. By irradiating the light from the light source and using the reflected light to read the image of the center-open document,
Detecting the red level image data in the marking area of the film means, performing conversion / non-conversion of the detected red level image data to white level image data according to the selection result, Selectively output image data from which the black image data has been deleted and image data that also includes the image data of the center-folded black image. In addition to being able to be deleted, the black image of the center fold part can be left as needed, and more appropriate image processing can be performed.

According to the image reading apparatus of the present invention, a transparent film means having a marking area in red on the entire left or right page from the position corresponding to the center-folded portion of the center-open document. Through the illuminated light from the light source to the center-open document, the image data of the image of the center-open document read by the reflected light, the red level image data of the marking area of the film means is detected and selected. According to the result, the detected red-level image data is converted / non-converted into white-level image data, and the image data obtained by deleting the image data of the half-folded portion and half a page, and all of the center-opened document And the image data of the center-opened document can be appropriately deleted, and, if necessary, the image data of all the pages of the center-opened document can be deleted. Also can be output, it is possible to perform more appropriate image processing.

[Brief description of the drawings]

FIG. 1 is a main part block diagram of an image reading apparatus to which a first embodiment of the image reading apparatus of the present invention is applied.

FIG. 2 is a front view of an example of a cut document read by the image reading apparatus of FIG. 1;

FIG. 3 is a diagram showing signal levels of white level, red level, and black level of image data of a document read by the image reading apparatus of FIG. 1;

FIG. 4 is a flowchart illustrating image processing performed by the image reading apparatus of FIG. 1;

FIG. 5 is a block diagram of a main part of an image reading apparatus to which a second embodiment of the image reading apparatus of the present invention is applied.

FIG. 6 is a perspective view showing a state in which an erase film is set on a middle-open document read by the image reading apparatus of FIG. 5;

FIG. 7 is a flowchart illustrating image processing by the image reading apparatus of FIG. 5;

FIG. 8 is a main part block diagram of an image reading apparatus to which a third embodiment of the image reading apparatus of the present invention is applied.

FIG. 9 is a perspective view showing a state in which an erase film is set on a middle-open document read by the image reading apparatus of FIG. 8;

FIG. 10 is a flowchart illustrating image processing by the image reading apparatus of FIG. 8;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 image reading device 2 image sensor portion 3 image reading processing portion 4 red level inversion processing portion 5 white / black level processing portion 6 OR circuit 7 printing portion 8 original 9 cutout portion 10 red marking 20, 30 image reading device 21, 31 Erase film 21a, 31a Red marking area 22 Half-open document 22a Half-folded part

Claims (3)

[Claims] A light source for irradiating light to a cut original having a cut portion and a red mark on a peripheral portion of the cut portion, and reading an image of the cut original by reflected light; Scanner means for outputting analog image data; image processing means for converting the analog image data output from the scanner means into at least digital image data; and a black image around the cut portion of the cut document. Means for selecting and instructing execution / non-execution of deletion of the image, and detecting the red level image data of the marking from the digital image data output from the image processing means, and responding to the selection result of the selection means. The conversion / non-conversion of the detected red-level image data to white-level image data is performed to obtain white-level image data or black-level image data. Red level processing means for outputting digital image data, black-and-white level processing means for performing binarization processing of the digital image data output from the image processing means into white level and black level image data, Image data synthesizing means for synthesizing the image data output from the level processing means and the image data output from the black-and-white level processing means. When the execution of the image deletion is selected, the inversion operation of the red level image data to the white level image data by the red level processing means is enabled, and the image of the black image around the cut edge is enabled. The image data from which the data has been deleted is output, and when the non-execution of the deletion of the black image on the periphery of the cut-out portion is selected by the selection means, the red level processing method is performed. The inverting operation of the image data of the white level of the image data of red level disables the image reading apparatus characterized by also outputting the image data of the black image of the periphery of the cut clad portion by. 2. A scanner for irradiating light from a light source to a center-opened document having a center-folded portion, reading an image of the cut-out document by reflected light thereof, and outputting analog image data; Closely transmitting the light from the scanner means, the film means having a marking area colored red in the center-folded portion of the half-open document, and at least the analog image data output by the scanner means Image processing means for converting to digital image data, selecting means for selectively instructing execution / non-execution of deletion of the black image in the center-folded portion of the center-open document, and digital image output by the image processing means Detecting the red level image data of the marking area of the film means among the data, according to the selection result of the selection means, Red level processing means for converting / non-converting the detected red level image data to white level image data and outputting white level image data or black level image data; and output from the image processing means Black-and-white level processing means for performing a binarization process on the digital image data into white level and black level image data; the image data output from the red level processing means and the image output from the black and white level processing means Image data synthesizing means for synthesizing data, wherein when the execution of deletion of the black image of the center fold portion is selected by the selecting means, the white level of the red level image data by the red level processing means is selected. Enable the inversion operation to the image data of
Outputting image data in which the image data of the black image of the center fold portion covered with the marking area of the film means is deleted, and non-execution of deletion of the black image of the center fold portion is selected by the selection means; And disabling the inversion operation of the red-level image data to the white-level image data by the red-level processing means, and also outputting the image data of the black image of the half-fold portion. Reader. 3. A scanner which irradiates light from a light source to a center-open document having a center-folded portion, reads an image of the cut-out document by reflected light thereof, and outputs analog image data; A film means having a marking area which is closely attached and transmits light from the scanner means, and is provided with a red marking area on the entire left or right page of the center-opened document from the center-folded portion of the center-opened document. Image processing means for converting analog image data output by the scanner means into at least digital image data, selecting means for selectively instructing execution / non-execution of the half-page deletion of the middle-open document, and image processing Detecting the red level image data of the marking area of the film means from the digital image data output by the means Depending on the selection result of said selection means,
Red level processing means for converting / non-converting the detected red level image data to white level image data and outputting white level image data or black level image data; and output from the image processing means Black-and-white level processing means for performing a binarization process on the digital image data into white level and black level image data; the image data output from the red level processing means and the image output from the black and white level processing means Image data synthesizing means for synthesizing data, and when the execution of the half page deletion is selected by the selecting means, the red level processing means converts the red level image data to the white level image data. Activating a reversing operation to display a half-page image from the center-folded portion of the half-open document covered with the marking area of the film means. Outputting the image data from which the data has been deleted, and when the non-execution of the half-page deletion is selected by the selection means, the inversion operation of the red level image data to the white level image data by the red level processing means; , And outputs all image data of the center-open document.