JP3604755B2 - Image information processing device - Google Patents

Description

[0001]
[Industrial applications]
The present invention particularly relates to an image information processing apparatus that processes a document image larger than an image reading size of a scanner or the like.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, an image synthesizing apparatus such as a copying machine that synthesizes a color original image or a halftone original image larger than a reading size of a scanner or the like constituting the apparatus is known. For example, in an image synthesizing apparatus disclosed in Japanese Patent Application Laid-Open No. 5-145742, when reading an original image larger than the maximum reading size of a scanner, one original image is divided and read, and each divided image is stored in a memory capacity or original. Each of the divided images is reduced to a size, an output size, and the like, combined into one document image according to the reading order and the reading state, and output.
[0003]
In addition, as an image information processing apparatus for an electronic file or the like, a document image larger than the image reading size of a scanner or the like can be easily recorded in the same manner as a normal document image is read and recorded on a recording medium such as a magneto-optical disk. What you can do is known.
[0004]
[Problems to be solved by the invention]
However, in the above-described conventional image synthesizing apparatus, it is necessary to move the original in parallel for processing, or to reverse the vertical direction or the horizontal direction, and it is troublesome to adjust the synthesized part of the image so as not to shift. Take it. Further, there is a problem that it takes a longer time to record one original on a recording medium such as a magneto-optical disk than a normal recording time.
[0005]
Further, in the above-described conventional image information processing apparatus, there is a problem that when a halftone original such as a photograph is combined with an image, the combining unit is conspicuous.
[0006]
The present invention has been made in view of the above-described problems, and has as its object to process a halftone original image such as a photograph larger than an image reading size of a scanner in the same manner as processing a normal original image. It is an object of the present invention to provide an image information processing apparatus that can easily and inconspicuously process a synthesizing unit.
[0007]
[Means for Solving the Problems] and [Function]
In order to achieve the above object, an image information processing apparatus that processes a document image having a size exceeding the image reading size according to the present invention includes a unit that reads the document image by dividing the document image based on the image reading size. A storage unit that stores the read divided image in units of a predetermined line, and a distance from a reference position set in the storage unit to an edge portion of the divided image in order to combine the divided images, Detecting means for detecting in line units, and combining means for combining the divided images based on the detection by the detecting means, the combining means, of the distance of the line unit detected by the detecting means, The divided image is moved to the reference position using the distance of one line having a shorter distance to the reference position as a movement amount, and the distance to the reference position is longer than the one line. By removing the black image existing in an edge portion of the other line, characterized by combining the divided images.
[0009]
【Example】
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0010]
FIG. 1 is a block diagram illustrating a basic configuration of an image information processing apparatus according to an embodiment of the present invention. FIG. 2 is a block diagram illustrating a detailed configuration of the image information processing apparatus according to the present embodiment.
[0011]
1, the image reading unit 200 includes, for example, the right half-side CCD 111a, the left half-side CCD 111b, the amplifiers 20a and 20b, the synthesizing unit 36, and the A / D conversion unit 21 shown in FIG.
[0012]
The document edge detection unit 201 in FIG. 1 corresponds to the image processing unit 22 in FIG. 2, and similarly, the divided pseudo multi-value processing unit 202 is stored in the pseudo multi-value processing unit 23, and the image synthesis unit 203 is stored in the graphic RAM 13. Corresponding. The image storage unit 204 includes a compression unit 24, a disk data flow controller 26, a disk I / F 27, a magneto-optical disk drive 115, and a magneto-optical disk 35, and the control unit 205 controls the CPU 10, the ROM 11, and the RAM 12. It is composed.
[0013]
FIG. 3 is an external view of the apparatus according to the present embodiment, and FIG. 4 is an internal perspective view of the apparatus. In the external view shown in FIG. 3 and the perspective view shown in FIG. 4, 1 is a document having image information to be recorded, 2 is a document table, 3a and 3b are rectifying plates for regulating document conveyance, and 4 is A discharge unit 5, a screen for displaying image information or operation instructions, 6, an insertion slot for inserting a magneto-optical disk, 7 a keyboard for inputting a keyword at the time of image search, and the like, Reference numeral 34 denotes a function key for instructing various operations.
[0014]
Thus, the operation of the apparatus according to the present embodiment will be described in detail step by step.
(1) Recording of image index
First, prior to actual document image recording, a symbolic image called an “image index”, which is related to a document to be recorded in the future, is recorded on the magneto-optical disk 35 in advance. This operation is generally performed in the same manner as the recording of an original image, and every time one index image is recorded, for example, as shown in FIG. An instruction to the effect is displayed on the upper left using the function key 34.
[0015]
Here, in FIG. 5, the function keys 34 are arranged in a row in the horizontal direction. For example, when the leftmost function key (the key with the character “1”) is pressed twice, the screen is displayed. It is configured so that the second frame from the upper left of the displayed frames can be designated. When a plurality of image indexes are recorded by such an operation, an index image data file as shown in FIG.
[0016]
The magneto-optical disk 35 has a storage area inside the medium as shown in FIG. 29, and the apparatus according to this embodiment operates according to the logical address table as shown in FIG. I have.
(2) Index selection
At the time of recording the document image, first, a display as shown in FIG. 7 is made prior to the actual document recording operation. Then, the operator uses the function key 34 to select an index image related to the document to be recorded. For example, when an attempt is made to record a drawing of a part, an index image indicated by reference numerals a and e is selected.
[0017]
Here, by selecting the index images a and e, as shown in FIG. 6, an image index pattern in which "1" stands at a bit position corresponding to the selected index image is generated.
[0018]
In the fields indicated by reference numerals g and h in FIG. 7, a key word or a key No. of a document to be recorded from now on is recorded. , A number that can be used as a starting point for a later search.
(3) Reading the original image
As described above, the image index pattern, the keyword, the key No. When a document larger than the scanner size is recorded after the input is performed, for example, as shown in FIG. 8, the document is folded to a size that can be read by the scanner, the left half of the document is set as the front surface image, and the right half is set as the right side. The document is set on the document table 2 as a back side image. Then, when a recording operation instruction is given by the keyboard 7, the function keys 34, or the document sensor 120, the conveyance of the document is started.
[0019]
When the document is conveyed, first, the feed roller 102 shown in FIG. 4 rotates in the illustrated arrow direction to feed the document 1. Then, the original 1 reaches the image reading unit 200 by the transport rollers 105a and 105b. Here, image information of the document illuminated by the illumination lamps 106a and 106b is reduced to lenses 110a and 110b via mirrors 107a to 109a and 107b to 109b, and is read by the CCDs 111a and 111b.
[0020]
At this time, as shown in FIG. 9, the image information on the right side and the image information on the left side are read with a slight shift to prevent show-through.
[0021]
The originals for which the reading has been completed are stacked on the discharge tray 113 by the discharge rollers 112 and 112b.
[0022]
The drive system 19 shown in FIG. 2 includes the original sensor 120, the motor transport rollers 105a, 105b, 112a, 112b, and the transport belts 114a, 114b. In the transport described above, the CPU 10 controls the drive system interface 18 This is performed by controlling the drive system 19 through the control unit.
[0023]
The image signals obtained by the right half-plane CCD 111a and the left half-plane CCD 111b shown in FIGS. 2 and 4 are sent to the synthesizing unit 36 through the amplifiers 20a and 20b. The synthesizing unit 36 switches an internal switching element (not shown) when data of one line in the main scanning direction is passed from the left half-surface CCD 111b to the next stage. Has the function of passing the image data to the next stage. In this way, the left and right image data are serialized in units of main scanning, and sent to the A / D converter 21 at the next stage.
[0024]
The image signal from the synthesizing unit 36 is quantized by the A / D conversion unit 21, and then subjected to image processing such as edge enhancement by the image processing unit 22. As shown in FIG. The data is stored in the graphic RAM 13 as data. Here, the known multi-value processing is performed on the left and right multi-valued image data stored in the graphic RAM 13 so that the left and right image portions are continuous.
[0025]
For example, in the case of using a 4 × 4 dither matrix shown in FIG. 12 obtained by a systematic dither method as shown in FIG. 13 and a division method as shown in FIG. Then, edge data described later is detected, and the dither matrix is applied only to the image area. At this time, if the number of pixels on the left side is not divisible by 4, a dither matrix is applied to the remainder, and the remaining dither matrix is applied from the beginning of the image area on the right side to be binarized.
[0026]
That is, in the present embodiment, by applying the dither matrix so that the left and right images are continuous, the combining unit is made inconspicuous when the left and right images are combined.
[0027]
Even if the error diffusion method is used as the pseudo multi-value processing, the same result as described above can be obtained by dividing the diffusion matrix so as to continuously apply the left and right images.
(4) Image composition
Here, the image data stored in the graphic RAM 13 has a black background on the document image as shown in FIG. 9 because the reading area of the scanner is wider than the document. A reference position for combining images is set on the graphic RAM 13, and the right image and the left image are combined at this reference position.
[0028]
FIG. 14 is a flowchart illustrating a procedure for synthesizing images according to the present embodiment.
[0029]
In the apparatus according to the present embodiment, first, in order to determine whether or not the document image is skewed, the edge of the document (here, the point at which the background changes from black to white because the background is black, is defined as the edge). ) Are obtained, and the inclination of a straight line connecting the two points is obtained (step S1). Then, based on the inclination, it is determined whether the document is skewed (step S2). If the document is skewed, a predetermined skew correction is performed (step S3).
[0030]
Next, for each line, the distance (edge data) from the reference position on the graphic RAM 13 to the edge is determined (step S4), and the image data is moved to the reference position on the graphic RAM 13 according to the data, and furthermore, the right half of the line is displayed. The image is moved upward (step S5). As a result, the left and right heights are adjusted, and the left and right images can be combined into one image.
[0031]
Next, each operation shown in FIG. 14 will be described in detail.
[0032]
First, the skew inspection of the image will be described with reference to the flowchart shown in FIG.
[0033]
As shown in FIG. 16, a portion that can be determined as an edge of the document from the reference position on the graphic RAM 13 (where the color changes from black to white as described above) is searched line by line, and the data of each line becomes stable first. The upper end is set as the upper end, and the end at which the data becomes stable is set as the lower end (step S11). Here, the point where the data is stable is defined as the upper end or the lower end when the document is skewed, and the position where the edge of the document can be determined first or last (for example, point a in FIG. 16) is erroneously determined as the upper end or the lower end. This is so as not to determine the lower end.
[0034]
Therefore, the inclination of the document is determined from the positions of the ends determined as the upper end and the lower end in the memory (the number of lines and the number of dots from the reference position) (step S12). That is, if the inclination is within the range of the angle a in FIG. 17 (for example, from 89.8 degrees to 90.2 degrees) (NO in step S13), the skew correction is not performed (step S17). Then, the present process ends.
[0035]
However, in the range of the angle c in FIG. 17 (for example, 95 degrees or more, or 85 degrees or less, etc.), the skew is too large and skew correction is not performed (the determination in step S14 is YES), and the operator And the recording is restarted (step S16).
[0036]
Therefore, in the present embodiment, skew correction is performed only when the inclination is within the range of the angle b in FIG. 17 (step S15).
[0037]
Next, a description will be given of skewed image correction of a document according to the present exemplary embodiment with reference to a flowchart illustrated in FIG. 6.
[0038]
The direction of the inclination is determined from the upper end and the lower end determined in the above-described skew feeding investigation process (step S31). Then, if the direction of the inclination rises to the right (YES in step S32), for example, as shown in FIG. Next, the X direction (horizontal direction in the figure) is divided as shown in (1), (2), and (3), and sequentially moved upward to the lower end A in units of the division (step S33).
[0039]
Also, as shown in FIG. 20, the Y direction (vertical direction in the figure) is divided into (1), (2), and (3) according to the magnitude of the inclination with respect to the lower end B as shown in FIG. It is sequentially moved rightward to the position of the lower end B (step S34).
[0040]
On the other hand, when the inclination of the document is right-downward, the same movement processing as in the above-described right-upward movement is performed with reference to the upper end (steps S35 and S36).
[0041]
In the above-described processing, the movement is performed based on the lower end when the inclination is rising to the right, and based on the upper end when the inclination is falling to the right. However, the movement is not limited thereto. The lower end may be performed with the upper end and the slope falling rightward.
[0042]
FIG. 21 is a flowchart illustrating edge data detection processing in the synthesis unit 36 of the device according to the present embodiment.
[0043]
Here, as shown in FIG. 22, the edge data at the upper end is used as reference data, and the edge data of the next line is used as comparison data (step S41 in FIG. 21). Then, it is determined whether the comparison between the reference data and the comparison data has been completed for each line from the upper end to the lower end (step S42). If the comparison has not been completed, the comparison data is compared with the reference data. Then, it is determined whether or not the deflection (such as fluttering of the original at the time of conveyance) is within an allowable range (step S43).
[0044]
If the deflection is within the allowable range, the comparison data is used as the reference data, and the edge data of the next line is used as the comparison data (step S44). The edge data is used as comparison data (step S45). Then, after the above comparison is completed, for the edge data that has not become reference data, a new edge formed by connecting the reference edges is set as a virtual edge (step S46).
[0045]
Next, the movement of the image (step S5 in FIG. 14) in the present embodiment will be described with reference to the flowchart shown in FIG.
[0046]
As shown in FIG. 24, the image data is moved to the reference position of the graphic RAM 13 for each line according to the edge data obtained by the above edge data detection (step S51). At this time, as shown in FIG. 25, the characters and figures of the original may not be distorted, but the edges may be uneven. This is due to a digital error caused by a CCD or the like. When the image data is moved to the reference position of the RAM according to the edge data, a character which should not be distorted as shown by the reference numeral 2501 in the upper right of FIG. And figures are distorted.
[0047]
Therefore, in the present embodiment, by displacing the image data with a small value of the edge data, the characters and figures are not distorted. At this time, as shown in the middle (2502) of FIG. 25, since the image data is moved with a small value of the edge data, a black streak or a black dot is formed in the image combining portion.
[0048]
That is, as shown in the lower left part (2503) of FIG. 25, by inverting the bit of the black streak and the black point, the character and the figure are not distorted and the black streak and the black point are removed in the image combining part. (Step S52). Then, the right half image is moved upward to adjust the left and right heights (step S53). Further, an image is cut out along the edge of the synthesized image, and the image is recorded as single-sided image data, so that the data amount is small and the image data is beautiful (Step S54).
[0049]
In this manner, the left and right divided images can be combined as the original document image.
[0050]
In this embodiment, the movement to the reference position is performed first, but the movement in the upward direction may be performed first.
(5) Image recording
The image data that has been converted into single-sided image data by the above-described left and right image synthesis procedure is subjected to known image information compression such as MH, MR, and MMR by the compression unit 24, and then to the compressed data buffer 33a or It is stored in one of the compressed data buffers 33b. Then, the stored compressed image data is sent to the magneto-optical disk drive 115 via the disk interface 27 and written on the magneto-optical disk 35.
[0051]
Here, two compressed data buffers 33a and 33b are provided as the compressed data buffers, for example, because the next original is written while the compressed image data of the compressed data buffer 33a is being written to the magneto-optical disk 35. Is scanned so that the compressed image data can be stored in the compressed data buffer 33b. This avoids the restriction that the scanning of the next document must wait until the image data of the previous document has been written to the magneto-optical disk, thereby improving the recording speed of the document.
[0052]
In this manner, when the recording of the document is completed, the recording of the document at that time is generated in the document management file shown in FIG. For example, in the above “part drawing”, in the second row of FIG. 26, the image index pattern “100010...” (See FIG. 6), the keyword “part drawing”, and the key No. A record including “150” is generated. In addition, the date and time of creation (recording date and time), the total number of pages, and the like obtained from the clock unit 15 shown in FIG. 2 are also described.
[0053]
Information about each page of the recorded document is described in a page management file shown in FIG. The "page file pointer" in the document management file indicates the number of the record in the page management file that relates to the first page of the document recorded at that time. In the recording of this page, the front and back mode, that is, whether the page has been read on both sides, has been read on one side, or has been combined, etc., as described above, is also recorded. I have.
[0054]
In the present embodiment, the image data on the magneto-optical disk 35, that is, the position of the above-described compressed image data on the disk is obtained by holding a data table called a node table shown in FIG. Is managed by The node table has a FAT entry (shown in the above example) indicating which position of a well-known FAT (a file allocation table, an example of which is shown in FIG. 31, for example) is for the compressed image file of the page. 27B0) and a table in which the size (the number of bytes) of the compressed image data is one record. The number of the record in the node table is referred to as “node”. Each page is described in the page management file.
[0055]
As described above, the document recording operation ends when the compressed image data is written on the magneto-optical disk 35 and records are added to the node table, the page management file, and the document management file.
(6) Image search
At the time of search, a display similar to that shown in FIG. 7 is displayed on the display 32, and the operator selects an image index using the function keys 34. Note that the keyword, key No. May be input from the keyboard 7 into the areas g and h shown in FIG. Next, the CPU 10 examines the document management file one record at a time, and selects or inputs the selected or input image index pattern, keyword, or key No. Select records that match.
[0056]
Here, if the selected image index is, for example, only the image index a including the character image of “parts” in FIG. 7, the image index including the character image of “drawing” is not selected. The index pattern is different from that shown in FIG. 6, and the bit corresponding to the symbol e in the figure is 0.
[0057]
However, when examining the record of the document management file shown in FIG. 26, the image index pattern in which “1” stands in the same bit position as “1” in the image index pattern input at the time of the search is determined. Since all the held records are selected, in the above example, the top “parts catalog”, the second “parts drawing”, and the next “parts drawing” shown in FIG. 26 are selected. The Rukoto.
[0058]
Here, the key No. If "150" is input as the keyword, only the second "parts drawing" is selected. If "parts drawing" is input as a keyword, the second "parts drawing" and the next "parts drawing" are selected. "Part drawing" is selected. As described above, when a plurality of documents are searched, the operator selects one of them again using the keyboard 7.
[0059]
When one document is finally selected, the record of the first page of the document is selected from the page file pointer of the record and the page management file of FIG. 27, and further, the node is specified. The FAT entry of the first page is obtained from the node table shown in FIG.
(7) Image display
The logical address sequence is obtained by tracing the above-mentioned FAT, and after specifying the desired compressed image data on the magneto-optical disk 35, the CPU 10 controls the disk interface 27 so that the magneto-optical disk drive 115 The compressed data is read.
[0060]
At this time, under the control of the CPU 10, the disk data flow controller 26 is in a state of functioning to transmit the compressed image data from the disk interface 27 to the decompression unit 25. In addition, the output data flow controller 30 is instructed by the CPU 10 to store image data from the decompression unit 25 in the graphic RAM 13 and to display the image data on the display 32.
[0061]
In this embodiment, the display of the compressed image data on the magneto-optical disk 35 is performed in this manner.
[0062]
As described above, according to the present embodiment, when printing a halftone original such as a photo original larger than the scanner width, the original is translated or moved up and down by correcting the direction of the read image. Alternatively, there is an effect that an image larger than the reading size of the scanner can be easily recorded as in the case of a normal-size document without determining the left-right direction.
[0063]
In addition, by performing pseudo multi-value processing continuously at the boundary of the read image, the image combining unit can be made inconspicuous.
[0064]
In the above embodiment, the images are combined and stored at the time of recording. However, the images may not be combined at the time of recording, and the images may be combined when the images are displayed after the search. Although two CCDs are used for reading an image, one CCD may be used a plurality of times, or three or more CCDs may be used.
[0065]
Further, in the above embodiment, the image synthesis is performed after the pseudo multi-value processing is performed. However, the image synthesis may be performed after the multi-value image synthesis is performed first.
<Modification>
Hereinafter, a modification of the above embodiment will be described.
[0066]
32 and 33 are block diagrams respectively showing a basic configuration and an overall configuration of an image information processing apparatus according to the present modification.
[0067]
The image reading unit 300 shown in FIG. 32 includes an image reading device 59 and a scanner control unit 55 shown in FIG. 33 which can continuously transport a plurality of documents. Similarly, the image recording unit 301 In the disk control unit 52, the image synthesizing unit 302 includes the VRAM 53 and the image synthesizing unit 61, the pseudo multi-value processing unit 303 includes the VRAM 53 and the pseudo multi-value processing unit 62, and the image output unit 304 includes the laser beam printer. The control unit 305 includes a CPU 51, a ROM 51b, and a RAM 51a.
[0068]
Therefore, the operation of the device according to the present modification will be described below.
[0069]
In FIG. 33, a personal computer 50 includes a RAM 51a for storing various information, a ROM 51b storing a program for realizing the processing procedures shown in FIGS. 34 and 35, a CPU 51 for controlling them, and storing image data. , A VRAM 53 for synthesizing an image, a printer control unit 54 for controlling a laser beam printer 58 for outputting image data, and continuous conveyance for reading a document image. A scanner control unit 55 controls an image reading device 59 with an automatic document feeder (ADF), and a keyboard control unit 56 controls a keyboard 60 for instructing various operations.
[0070]
As shown in FIG. 36, for example, the operator cuts an A3 size document into two, and sets two A4 size documents, and transfers the A4 size document to an image reading device 59 having a scanner whose reading size is A4 size. After the setting, the key input from the keyboard 60 starts the storage processing shown in FIG.
[0071]
That is, the CPU 51 checks the presence or absence of a document through the scanner control unit 55 (step S61), and if there is no document, ends the storage processing. However, if there is a document, the first document is read into the VRAM 53 via the image reading device 59 and the scanner control unit 55 (step S63), and is read onto the magneto-optical disk 57 via the disk control unit 52. The information is written together with the information of the first divided image (step S64).
[0072]
Next, the second document is also read into the VRAM 53 via the scanner control unit 55 (step S65), and referred to as the second image of the divided image on the magneto-optical disk 57 via the disk control unit 52. The information is written together with the information (step S66). Then, the process returns to the check of the presence or absence of the document (step S61).
[0073]
Next, the operator instructs the CPU 51 to perform a printing process by a key input from the keyboard 60, and starts the printing process illustrated in FIG.
[0074]
That is, after specifying the desired compressed image data on the magneto-optical disk 57 (the first image of the divided image), the CPU 10 reads the compressed image data from the magneto-optical disk 57 via the disk control unit 52. (Step S71). At this time, the CPU 10 gives an instruction to the effect that the compressed image data functions to be stored in the VRAM 53 through a decompression unit (not shown).
[0075]
Next, the second divided image is read into the VRAM 53 in the same manner as the first divided data described above. At this time, as shown in FIG. 37, the second divided image is stored in the VRAM 53 so as not to overlap the first divided image (step S72). A reference position for combining images is determined between the first and second VRAMs 53 (step S73), and skew inspection is performed on each of the first and second images. If the image is skewed, skew correction is performed, the edge data of the combining unit is detected, the image is moved to the reference position, and the left and right heights are adjusted so that the two divided images are reduced to one. The two images are combined (step S74).
[0076]
Here, when the right and left heights are adjusted, since the reading of the document is performed twice, the length of the document may be slightly different due to uneven conveyance of the document or skew correction. If the left and right heights are kept the same and the images are matched, the contents of the document may be slightly shifted, making it difficult to see.
[0077]
Accordingly, the height of the right and left sides of the character or graphic extending over the first and second sheets as shown in FIG. 38 is adjusted so that the matching point is maximized (step S75). As a result, a composite image with little original displacement can be obtained. Then, a pseudo multi-value processing is performed on the synthesized image as in the above-described embodiment (step S76), and the result is output to the laser beam printer 58 via the printer control unit 54 (step S76). Step S77).
[0078]
In this way, in the present modification, an image larger than the reading size of the scanner can be stored and output as easily as an ordinary continuous recording of a single-sided document for the operator.
[0079]
In this modification, the image synthesis is performed at the time of outputting the image. However, the present invention is not limited to this, and the image synthesis may be performed at the time of storing the image. In this modification, a single-sided scanner with an ADF is used, but a handy scanner, flat-bed scanner, double-sided scanner, or the like may be used.
[0080]
The present invention may be applied to a system including a plurality of devices or an apparatus including one device. Needless to say, the present invention can be applied to a case where the present invention is achieved by supplying a program to a system or an apparatus.
[0081]
【The invention's effect】
As described above, according to the present invention, it is possible to easily record a document larger than the reading size in a similar manner to a normal size image without moving the original in a parallel direction or determining the vertical direction or the horizontal direction. The combining unit can be made inconspicuous.
[0082]
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a basic configuration of an image information processing apparatus according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating a detailed configuration of an image information processing apparatus according to an embodiment.
FIG. 3 is an external view of an image information processing apparatus according to the embodiment.
FIG. 4 is an internal perspective view of the apparatus according to the embodiment.
FIG. 5 is a diagram illustrating an example of an image index registration screen.
FIG. 6 is a diagram illustrating an example of an index image data file.
FIG. 7 is a diagram showing an example of an index registration or search screen.
FIG. 8 is a diagram schematically illustrating a document when an image is read in the embodiment.
FIG. 9 is a diagram schematically showing a document developed on a memory in the embodiment.
FIG. 10 is a diagram illustrating an example of multi-value data of an input pixel according to the embodiment.
FIG. 11 is a diagram illustrating an example of division of a 4 × 4 dither matrix.
FIG. 12 is a diagram illustrating an example of a 4 × 4 dither matrix.
FIG. 13 is a diagram showing an organized dither method according to the embodiment.
FIG. 14 is a flowchart illustrating a processing procedure of image composition in the embodiment.
FIG. 15 is a flowchart illustrating a processing procedure for obliquely checking an image according to the embodiment.
FIG. 16 is a diagram illustrating a skew investigation in the example.
FIG. 17 is a diagram illustrating a skew investigation in the example.
FIG. 18 is a flowchart illustrating a processing procedure of skew correction of an image in the embodiment.
FIG. 19 is a diagram for explaining skew correction in the embodiment.
FIG. 20 is a diagram for explaining skew correction in the embodiment.
FIG. 21 is a flowchart illustrating a processing procedure of edge data detection of a combining unit according to the embodiment.
FIG. 22 is a diagram for describing edge data detection in the embodiment.
FIG. 23 is a flowchart illustrating an image moving processing procedure in the embodiment.
FIG. 24 is a diagram for explaining movement of an image in the example.
FIG. 25 is a diagram for explaining black streak removal in the example.
FIG. 26 is a diagram illustrating an example of a document management file according to the embodiment.
FIG. 27 is a diagram illustrating an example of a page management file according to the embodiment.
FIG. 28 is a diagram illustrating an example of a node table in the embodiment.
FIG. 29 is a diagram illustrating an example of a storage area of a magneto-optical disk according to the embodiment.
FIG. 30 is a diagram illustrating an example of a logical address table according to the embodiment.
FIG. 31 is a diagram illustrating an example of a file allocation table in the embodiment.
FIG. 32 is a block diagram illustrating a basic configuration of an image information processing apparatus according to a modification.
FIG. 33 is a block diagram illustrating an overall configuration of a device according to a modification.
FIG. 34 is a flowchart showing a procedure of a storage process in a modified example.
FIG. 35 is a flowchart illustrating a procedure of a printing process according to a modified example.
FIG. 36 is a view schematically showing a document when an image is read in a modified example.
FIG. 37 is a diagram showing how divided images are stored in a modification.
FIG. 38 is a diagram for describing printing in a modified example.
[Explanation of symbols]
1 manuscript
2 Platen
3a, 3b training plate
4 Paper output unit
5 screen
6 Magneto-optical disk insertion slot
7 Keyboard
34 function keys
200 Image reading unit
201 Document Edge Detector
202 Divided pseudo multi-value processing unit
203 Image synthesis unit
204 Image storage unit

Claims (2)

In an image information processing apparatus that processes a document image having a size exceeding the image reading size,
Means for reading the document image by dividing based on the image reading size,
Storage means for storing the read divided image in units of predetermined lines,
Detecting means for detecting a distance from a reference position set in the storage means to an edge portion of the divided image for each line, in order to combine the divided images,
A synthesizing unit that synthesizes the divided images based on the detection by the detecting unit,
The synthesizing unit moves the divided image to the reference position, using a distance of one line having a short distance to the reference position as a movement amount among the distances of the line units detected by the detection unit, and An image information processing apparatus, wherein a black image existing on an edge portion of another line whose distance to a position is longer than the one line is removed and the divided image is synthesized. The detection unit sets a distance from the reference position to an edge of a predetermined line as reference data, and compares the reference data with a distance from the reference position to an edge of another line in line units. 2. The image information processing apparatus according to claim 1, wherein when a result of the comparison exceeds an allowable range, a new virtual edge is set for an edge portion of the other line based on the reference data.

Images