JPH05225304A - Digital picture processor - Google Patents

Abstract

PURPOSE:To make it possible to simultaneously perform document controls such as a page order, etc., and picture conversion processings such as expansion, reduction, picture shift, etc., of a specific original picture by a very simple method by unnecessitating the preliminary sorting of an original or special mark sheet, etc. CONSTITUTION:In a digital picture processor having a picture reading means and a picture storage means storing plural. read original pictures, an extraction means extracting an arbitrary area (a page part, for instance) of a read picture and a control means 20 performing an output sequence and an original picture conversion processing, deleting an original picture conversion specific character and reproducing the original picture in accordance with a document control specific character specifying the document, control such as the output sequence of the original picture recognized by a character recognition means 11 performing a character recognition based on the extracted picture and the original picture conversion specific character specifying the original picture conversion processings such as the expansion, reduction and picture shift, etc., of the original picture designated from a user interface 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital image processing apparatus having storage means for storing a plurality of pages of image data.

[0002]

2. Description of the Related Art Conventionally, an apparatus for handling image data stored in an image storage means is disclosed in, for example, Japanese Patent Laid-Open No. 2-84875.
It is disclosed in the publication. In the device disclosed in this publication, a document image read by an image reading device is stored with a memory area allocated for each page.
By arbitrarily selecting a plurality of memory areas, a desired page can be printed and reproduced according to the selected order.

Further, conventionally, there is known a so-called paper user interface for controlling a job to be performed by an image processing apparatus such as a copying machine or a facsimile by filling in a mark sheet. A system of this type disclosed in U.S. Pat. No. 4,248,528 has mark fields printed on a mark sheet corresponding to various jobs, and an operator must mark the mark fields with a pencil. As a control sheet, the control sheet is set on the document stack and the automatic document feeder to control the job of the copying machine. A device similar to this is also disclosed in Japanese Patent Application Laid-Open No. 2-8171.

[0004]

However, in the apparatus disclosed in the above-mentioned Japanese Patent Laid-Open No. 2-84875, there is a strong dependence of the image reading order on the document management, and a document of a plurality of pages is read in the page order. Has
Although it is easy to specify the print output order, for example, it is difficult to read an unsorted document stack, sort and output it, and the device user sorts the document stack in consideration of the order in which the documents are read in advance. You need to do it.
Also, in order to replace only a few pages of the accumulated multiple pages of image data, a confirmation work is required to check the page number of the original to be replaced,
Furthermore, it is expected that the designated work will also be troublesome.

Further, the aforementioned US Pat. No. 4,248,528.
In the device disclosed in the specification, the paper user interface needs to be attached with an operation instruction sheet for instructing editing in document units for each page, and there is room for improvement.

The object of the present invention is to solve the problems of the prior art as described above, to eliminate the need for pre-sorting the originals, and without the need for special mark sheets, etc. It is an object of the present invention to provide a digital image processing apparatus capable of simultaneously performing document management such as alignment and image conversion processing such as enlargement, reduction, and image shift of specific document images.

[0007]

According to the present invention, a plurality of
Image reading means for reading an image of a document and the image reading means
Accumulates document images read by image reading means
In a digital image processing device having an image storage means for
And extracting an arbitrary area of the read image
Means and a sentence based on the image extracted by the extracting means.
Character recognition means for character recognition and recognition by the character recognition means
Identify document management such as output order of document images
Document management Enlarge / reduce specific characters and original images,
Specify the image conversion process of the original image
In the output order and document image conversion processing according to the characters,
The area of the original image conversion specific character is white data
Control means for reproducing the original image.
It is characterized by

[0008]

With this structure, when a bundle of originals is read and accumulated, the document management of the original bundle image data is performed based on the result of recognizing the page number written on each original regardless of the reading order. Do it. Further, when a predetermined character is detected from the image data of the designated extraction area, the enlargement / reduction / image shift process corresponding to the specific character is performed only on the detected document image data.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the accompanying drawings with reference to the accompanying drawings.

FIG. 1 is a block diagram showing the overall configuration of a digital image processing apparatus as an embodiment of the present invention.
In FIG. 1, broken-line arrows indicate the flow of control signals, and solid-line arrows indicate the flow of image data. As shown in FIG. 1, the digital image processing apparatus 19 includes a document reading section 5. This document reading section 5 is shown in FIG.
As shown in the schematic diagram of FIG.
The original 33 placed on the sheet 2 is illuminated by the illumination unit 31, and the reflected light is read by an image sensor such as a CCD (Charge Coupled Device) 30. The read image data is converted into digital image data by an A / D conversion circuit after passing through a correction circuit such as shading correction.

According to the present invention, this digital image processing apparatus 19 comprises a character recognition memory 2 and a character recognition section 11. The character recognition memory 2 is used to temporarily store the read image data in the designated area. The character recognition unit 11 is a unit that performs character recognition based on the image data in the designated area stored and stored in the character recognition memory.

Further, the digital image processing device 19 is
Fixed storage unit 1 which is a hard disk, operation unit 3, image compression unit 4, image decompression unit 6, image rotation unit 12, page buffer 13, image recording unit 15, system control unit 20, and user. The interface unit 18 is provided. The system control unit 20 includes a user interface display unit 16 and a user interface operation unit 17, and the system control unit 20 includes a CPU 7, a ROM 8, a non-volatile memory 9, and a system control memory 10. ing.

As shown in detail in FIGS. 3 and 4, the page buffer 13 is provided with a # 0 page buffer 25 and a # 1 page buffer 26, and image data of A3 paper size can be stored for two pages. It has a capacity. As shown in detail in FIG. 3, the arithmetic unit 3 includes a data selector 21
A line buffer read / write control unit 22, a # 0 line buffer 24, and a # 1 line buffer 23, and enlarges the image data input by the document reading unit 5 instructed by the user interface unit 18. / Data conversion for performing reduction processing is performed via the page buffer 13.

By compressing the original image data and storing the compressed image data, the image compression unit 4 and the fixed storage device 1 can capture more image data than the uncompressed image data. The image decompression unit 6 has a function of converting the compressed image coded data into image data recordable by the recording unit 15.

The image rotation unit 12, as shown in detail in FIG. 4, includes a data selector 21 and a # 0 block buffer 28.
And a # 1 block buffer 27 and a block buffer read / write controller 29,
Data conversion for performing the image rotation process instructed by the user interface unit 18 is performed via the page buffer 13. An example of such rotation data conversion of image data is shown in FIG. 2, and FIG. 2 shows an example of rotation data conversion of image data having a density gradation of 2 bits per pixel.

Next, an operation example of the digital image processing apparatus according to this embodiment of the present invention will be described in detail.

First, the operator, as shown in FIG.
A character recognition area is designated using the operation unit 17 of the user interface unit 18. After that, the document bundle is set, and each document is read by the image reading unit 5 and converted into image data. Here, the image data in the area designated by the user interface unit 18 is extracted and copied, transferred to the character recognition memory 2, and all the read image data is image-compressed by the image compression unit 4. , Convert to image coded data.

Further, the system control unit 20 counts the number of the original document currently being read, allocates the memory area of the fixed storage device 1 as the image storage unit based on the counted value, and The coded data is transferred to the fixed storage device 1 and the image is stored therein. The image data stored in the character recognition memory 2 is sent to the character recognition unit 11 and a character is recognized from the image data. The recognized page number is transferred to the system control unit 20, and the system control unit 20 creates and stores a correspondence table between the read count value and the recognized number. An example of such a correspondence table is shown in FIG. FIG. 7 shows the print output order when the original A, the original B, and the original C are read and the ascending order is designated.

Thereafter, the document is sequentially read by the image reading unit 5, and the correspondence table is updated each time the document is read, and the image data is image-encoded by the image compression unit 4. After being converted into data, images are accumulated. When there are no read originals, for example, when the user interface unit 18 outputs the data in ascending order, the recognition number recognized by the character recognition unit 11 is not output as the count value as illustrated in FIG. The coded image data is read from the image storage unit 1 in ascending order of numbers. After that, the transferred image data is transferred to the image expansion unit 6, and the expanded image data is written in the page buffer 13 and transferred to the image recording unit 15. Here, in the correspondence table search, the count table having a larger count value is searched first, and the correspondence table searched first has priority.

If the character recognized by the character recognition unit 11 is a specific character that specifies the image conversion process such as enlargement / reduction / image shift specified by the user interface unit 18 in advance, then the character is followed. The detected numerical value is detected as a parameter and notified to the system control unit 20. Upon receiving the notification, the system control unit 20 writes the white data in the character recognition memory 2. After that, only for the original image in which a specific character that specifies the image conversion process is detected, the decompressed image data is page-combined with the data in the character recognition memory, and the combined image data is addressed via the page buffer. Image data conversion processing such as enlargement / reduction / image shift is performed by operation or the like. The image data after the image processing is stored in the image recording unit 1.
5 is transferred. Therefore, in the image recording unit 15, the characters are printed and reproduced in the order of the page numbers attached to the originals regardless of the reading order of the originals, and the characters for specifying the image conversion processing such as enlargement, reduction, and image shift are added. The originals are printed and reproduced in a state where the specified image processing is enlarged, reduced, or image shifted and the specific characters are erased.

FIG. 8 shows a correspondence table showing an example of the relationship between registered characters registered in advance for specifying such image conversion processing and the types of image conversion processing specified by the registered characters. 9 is a table showing an example of print output when control characters are added to the original A, the original B, and the original C, respectively.

If the operator wants to replace only a certain page, that is, to replace the page, the image reading section 5 reads a corrected document having the same page number as the page number of the document to be replaced. Character recognition is performed again based on the image data obtained by the image reading unit 5, and the above-mentioned correspondence table is updated. However, as described above, in the search at the time of print output, the correspondence table previously searched for has priority. Therefore, at the time of printing output, the corrected document image is output. Here, the case where the corrected original is given the same number as the original before replacement is described.
The page replacement may be performed by designating the replacement page with the operation unit 17 of 8.

[0023]

As described above, according to the present invention,
If page numbers are attached to the originals, the document management is performed by the page numbers without depending on the reading order of the original images, so that it is not necessary for the user to sort the originals in advance when setting the originals. Furthermore, if you want to perform image processing such as enlarging / reducing / image shifting only on a part of the pages of a document stack, you should register a specific character in advance for that operation and register that character in a specific area of the document. By filling in it, it is possible to automatically apply specific image processing only to that page.

[Brief description of drawings]

FIG. 1 is a block diagram showing an overall configuration of a digital image processing apparatus as an embodiment of the present invention.

FIG. 2 is a diagram illustrating a rotation data conversion example of image data having a density gradation of 1 pixel and 2 bits.

3 is a block diagram showing details of a page buffer and a calculation unit of the digital image processing apparatus of FIG.

4 is a block diagram showing details of a page buffer and an image rotation unit of the digital image processing apparatus of FIG.

5 is a diagram showing details of an image reading unit of the digital image processing apparatus of FIG.

6 is a diagram showing a designated state on the display unit of the user interface unit of the digital image processing apparatus of FIG.

FIG. 7 is a diagram illustrating an example of a correspondence relationship between a document reading order, a document page number, and an output order.

FIG. 8 is a diagram illustrating a relationship between registered characters for specifying image conversion processing and image conversion processing specified by the registered characters.

FIG. 9 is a diagram showing an example of a relationship with print output when a control character is attached to a document.

[Explanation of symbols]

1 fixed storage device 2 memory for character recognition 3 arithmetic unit 4 image compression unit 5 image reading unit 6 image decompression unit 7 CPU 8 ROM 9 non-volatile memory 10 system control RAM 11 character recognition unit 12 image rotation unit 13 page buffer 15 images Recording unit 16 User interface display unit 17 User interface operation unit 18 User interface unit 19 Digital image processing device 20 System control unit 21 Data selector 22 Line buffer read / write control unit 23, 24 Line buffer 25, 26 Page buffer 27, 28 blocks Buffer 29 Block buffer Read / write control unit 30 CCD 31 Illumination unit 32 Platen 33 Original

Claims (1)

[Claims] 1. A digital image processing apparatus having an image reading unit for reading images of a plurality of originals and an image storage unit for storing original images read by the image reading unit, in an arbitrary region of the read images. Means for extracting characters, character recognition means for recognizing characters based on the image extracted by the extraction means, and document management for specifying document management such as output order of document images recognized by the character recognition means Original image conversion for specifying a specific character and original image conversion processing such as enlargement, reduction, and image shift of the original image Output order and original image conversion processing according to the specific character, and the area portion of the original image conversion specific character is set. A digital image processing apparatus comprising: a control unit for reproducing a document image as white data.