JPH06282625A - Device and method for processing picture information - Google Patents

Abstract

PURPOSE:To substantially improve the utilizing efficiency of a cabinet by selectively compressing picture information compressed by an MH system or an MR system by an MMR system and copying it to a copying destination cabinet. CONSTITUTION:A menu screen for selecting whether or not to change a compression system is displayed at a CRT display device 24 and an operator performs selection. When the change of the compression system is selected, a CPU 34 refers to picture header information, discriminates the compression system and performs transfer to a picture memory 50 when it is judged that the compression system is not the MMR system. The CPU 34 compresses the picture information of a copying source by the MMR system by a picture processing part 55 and copies it to the copying destination cabinet. Since the picture information compression-recorded by the MH system or the MR system can be compressed by the MMR system and copied to the copying destination cabinet and the picture information can be recorded with a density increased by several tens as compared with the MH system, the utilizing efficiency of the cabinet can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image information processing apparatus such as an electronic filing apparatus which compresses image information and stores it in a recording medium such as an optical disk.

[0002]

2. Description of the Related Art Generally, in an electronic filing apparatus, when a document is recorded in a cabinet (a storage medium of an optical disk device), it is divided into two parts, title data and image data. The title data includes the title of the original document and position information registered in the cabinet, and the image data includes information of the original document read by the scanner, which is converted into an electric signal and sent to the image memory. Since the converted manuscript information becomes large, it is usually CODEC (encoder /
The image data is compressed by the decoder) and registered in the cabinet. The compression method is MH (Modif
ied Hoffman), MR (Modified
Read), MMR (Modified Modify)
d Read). In the electronic filing apparatus as described above, image data registration is performed by MMR.
The image data is searched by the MH method,
There are electronic filing apparatuses that perform the MR method and the MMR method.

However, when the copying operation is performed by the above filing apparatus, the image data is copied to the copy destination cabinet by using the compression method of the copy source cabinet. The compression ratio is MH system, MR system, MMR
Since the sizes increase in order of the method, there is a tens of times difference between the case of copying by the MH method and the case of copying by the MMR method. Therefore, when the copy source cabinet is registered by the MH method or the MR method, there is a demand for an electronic filing apparatus that can be registered in the copy destination cabinet by using the MMR method.

[0004]

As described above, in the conventional electronic filing apparatus, when the image data is compressed by the MH system or the MR system and registered in the copy source cabinet, it is compressed by the MMR system and copied. Could not register in the cabinet.

An object of the present invention is to provide an image information processing apparatus capable of selectively compressing by the MMR method and copying to the copy destination cabinet when the copy source cabinet is compressed and registered by the MH method or the MR method. And to provide a method.

[0006]

In order to achieve the above object, an image information processing apparatus according to the present invention comprises an MH (Modif).
ied Hoffman) method and MR (Modif)
ied Read) method, and means for recording image information compressed by using any of the MH method and MR.
Means for instructing to compress the image information by using a compression method having a higher compression ratio than the compression method; and compressing the image information recorded in the recording means by using the instructed compression method to a copy destination. And means for copying.

Further, according to the image information processing method of the present invention, the image information including the first image information compression method and the second image information compression method having a compression rate higher than that of the first image information compression method is used. An image processing unit including at least a compression / expansion function and an enlargement / reduction function; a unit for recording image information compressed by the image processing unit in the first compression method; a copy of the image information recorded in the recording unit. In an image information processing apparatus including a control unit that performs an operation,
a) a step of selecting a compression method in response to a copy instruction of image information; and b) the image when the second compression method is selected and the image information to be copied is compressed by the first compression method. Compressing information in a second compression scheme and copying; c) if the first compression scheme is selected, or if the second compression scheme is selected and the image information to be copied is compressed in the second compression scheme. If so, a step of directly copying the image information to be copied is provided.

[0008]

According to the present invention, when the image information compressed and recorded by using the MH system or the MR system is copied, the M
Let the operator choose whether to compress by the MR method.
When the compression by the MMR method is selected, the image information compressed and recorded by the MH method or the MR method is compressed by the MMR method and copied to the copy destination cabinet. As a result, the image information can be recorded at a density of several tens of times that of the MH system, so that the usage efficiency of the cabinet can be improved.

[0009]

Embodiments will be described below with reference to the drawings. FIG. 1 is a system block diagram of an electronic filing apparatus which is an embodiment of the image information processing apparatus of the present invention.

The electronic filing device 1 is connected to another electronic filing device 1 via a public line 2. The electronic filing device 1 is composed of a control unit 10, a scanner device 18, an optical disk device 22, a keyboard 23a, a mouse 23b, a CRT display device 24, a printer device 25 and a hard disk device 27. The keyboard 23a and the mouse 23b are connected to the CPU 34 of the control unit 10.

The control unit 10 includes a CPU 34 that performs various controls for image storage, retrieval, editing processing, etc., an optical disk interface 36 that connects the optical disk device 22 and the CPU 34, a hard disk device 27, and a CPU.
Hard disk interface 37 for connecting to 34
A main memory 38 for storing various control programs for image storage, retrieval, editing, etc. and management information, and a display memory 42 as a display interface for temporarily storing the image displayed by the CRT display device 24.
An image memory 50, a scanner interface 52 for the scanner device 18, a printer interface 54 for the printer device 25, and a network interface 58 for connecting to an external device such as another image filing device, a facsimile device, or a personal computer. It consists of The respective units are connected by the system bus 30.

The scanner device 18 is a two-dimensional scanning device, which obtains an electric signal (image data) corresponding to an image on the original by scanning the original (document) two-dimensionally with a laser beam. The optical disk device 22 sequentially stores the images of the original read by the scanner device 18 on the optical disk. Further, the optical disc is searched for an image corresponding to the search code designated by the keyboard 23a or the like. The keyboard 23a is used to input a unique search code corresponding to an image stored on the optical disc and various operation commands such as storage, search, and edit processing. The mouse 23b is used to arbitrarily move a cursor displayed on the display window of the CRT display device 24 to select or instruct various operation modes, area designation for image editing, and the like.

The CRT display device 24 displays the image read by the scanner device 18 and the image retrieved from the optical disk. The printer device 25 is
The image read by the scanner device 18, the image retrieved from the optical disk, or the image displayed on the CRT display device 24 is printed out (hard copy). The hard disk device 27 stores various control programs including the program shown in the flowchart of FIG. 2 and stores the search code input from the keyboard 23a and the storage address and the image on the optical disc in which the image corresponding to the search code is stored. The search information including the size and the like is stored. The program showing the copy operation shown in FIG. 2 is loaded from the hard disk device 27 into the main memory 38 at the time of execution and executed by the CPU 34. The image processing unit 55 has a function of compressing / decompressing image information by the MH system, the MR system, and the MMR system, and a function of enlarging / reducing. Hereinafter, the copy operation of the electronic filing apparatus of the present invention configured as described above will be described with reference to the flowchart shown in FIG.

In step 71 of FIG. 2, search conditions are input from the keyboard 23a or mouse 23b on the binder edit screen displayed on the CRT display device 24. In this embodiment, the binder is information for knowing where on the cabinet the target image information is recorded, and corresponds to a directory. Next, in step 73, a cabinet record that satisfies the entered search condition is selected. Next, in step 75, whether to change the compression method is input. For example, as shown in FIG. 3, the CRT display device 24 displays a selection menu screen as to whether or not to change the compression method, and allows the operator to select it. The operator inputs "Y" or "N" from the keyboard 23a or "YES" or "with the mouse 23b.
Click "NO" to change the compression method.
In step 77 of FIG. 2, the flag provided at the specific address of the main memory 38 is set based on the selected information. In this embodiment, if "YES" is selected, the flag is set to "0", and if "NO" is selected, the flag is set to "1". Next, in step 79, the title and image data of the copy source cabinet are searched. Then, in step 81, the CPU 34 refers to the above-mentioned flag and confirms whether the compression method has been changed. The flag is "
0 ", that is, when changing the compression method is selected, CP
In step 83, the U34 refers to the image header information to identify the compression method. When it is determined in step 85 that the compression method is not the MMR method, the CPU 34
In step 87, the image data is transferred to the image memory 50. Further, in step 89, the compression method written in the image header information is changed to "MMR method". And
In step 91, the CPU 34 compresses the image information of the copy source by the "MMR method" and copies it to the cabinet of the copy destination. Next, in step 97, the CPU 34 determines whether it is the final page. If it is not the final page, the process returns to step 81, and the operations from step 81 to step 97 described above are repeated until the final page is reached.

On the other hand, if the flag indicating the change of the compression method is "1" in step 81, that is, if the compression method is not changed, and if the compression method is the "MMR method" in step 85, the CPU 34 executes the step. 9
In step 3, the compression method written in the image header information is not changed, and in step 95, the image information of the copy source cabinet is copied as it is to the copy destination cabinet. As a result, the image information recorded by the MH system, the MR
The image information recorded by the method or the image information by the MMR method is copied to the copy destination cabinet as image information compressed by the MH method, the MR method, and the MMR method, respectively.

[0016]

As described above, according to the image information processing apparatus of the present invention, when the change of the compression method is selected, the image information recorded in the copy source cabinet is the MH method or the MR method. Check if the image information has been compressed and recorded with, and if so, compress it with the MMR method, transfer it to the image memory, and then copy it to the copy destination cabinet. If the change of the compression method is not selected, Alternatively, even if it is selected, if the image information of the copy source cabinet is compressed and recorded by the MMR method, the compression method is not changed, and the image is copied to the copy destination cabinet by the compression method recorded in the copy source cabinet. . As a result, the usage efficiency of the cabinet can be significantly increased.

[Brief description of drawings]

FIG. 1 is a system block diagram of an electronic filing apparatus which is an embodiment of an image information processing apparatus of the present invention.

FIG. 2 is a flowchart showing a copy operation of the electronic filing device shown in FIG.

FIG. 3 is a diagram showing an example of a menu screen for selecting a change in compression method in the flowchart shown in FIG.

[Explanation of symbols]

1. ． ． Electronic filing device, 2. ． ． Public communication line, 10. ． ． Control unit, 18. ． ． Scanner, 2
2. ． ． Optical disk device, 23a. ． ． Keyboard, 2
3b. ． ． Mouse, 24. ． ． CRT, 25. ． ． Printer, 30. ． ． ． System bus, 34. ． ． CPU,
36. ． ． Optical disc interface, 38. ． ． Main memory, 50. ． ． Image memory, 52. ． ． Scanner interface, 54. ． ． Printer interface, 55. ． ． Image processing unit, 58. ． ． Network interface

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location H04N 5/76 E 7916-5C

Claims (7)

[Claims] 1. Image information compression / expansion function and expansion / expansion function
An image processing unit having at least a reduction function; a first compression method in which compression ratios are different by the image processing unit,
A means for recording image information compressed by any one of a second compression method and a third compression method; and a control means for performing a copying operation of the image information, the first compression method or the second compression method An image information processing apparatus, wherein image information compressed by a compression method is selectively compressed to a third compression method to perform a copy operation. 2. Means for recording image information compressed using either a first compression method or a second compression method having different compression ratios; and a compression ratio higher than that of the first compression method and the second compression method. Means for instructing to compress the image information by using the high compression third compression method; and means for compressing the image information recorded in the recording means by using the instructed compression method and copying it to the copy destination. An image information processing apparatus comprising: 3. The image information processing apparatus according to claim 1, wherein the copy means compresses the image information using a third compression method and copies the image information to a copy destination. 4. Recording means for recording image information compressed using any one of a first compression method, a second compression method and a third compression method having different compression ratios; A means for reading out the image information from the recording means; a means for selecting whether or not to compress the image information by the third compression method when the read out image information is copied to a copy destination; and a third means for selecting the image information Means for determining whether the image information to be copied is compressed by the first compression method or the second compression method when the compression method is selected; and the image information to be copied by the determination means is the first compression method or When the image information to be copied is compressed by the second compression method, the image information to be copied is compressed by the third compression method, and the compression by the third compression method is selected by the selecting means when copying to the copy destination. If not, or if it is not compressed by the first compression method or the second compression method by the determination means, the image information processing means is provided with means for directly copying the image information to be copied to the copy destination. apparatus. 5. A compression / expansion function and an expansion / reduction function of image information including at least a first image information compression method and a second image information compression method having a compression rate higher than that of the first image information compression method. An image processing unit including; a unit for recording the image information compressed by the image processing unit by the first compression method; and a control unit for performing a copy operation of the image information recorded in the recording unit, Selectively the image information compressed by the 1-compression method
An image information processing apparatus, characterized in that a compression operation is performed to perform a copy operation. 6. At least a compression / expansion function and an expansion / reduction function of image information including a first image information compression method and a second image information compression method having a compression rate higher than that of the first image information compression method. Image information including an image processing unit including; a unit for recording the image information compressed by the first compression method by the image processing unit; and a control unit for performing a copy operation of the image information recorded in the recording unit In the processor, a) selecting a compression method in response to a copy instruction of image information; and b) selecting the second compression method and compressing the image information to be copied by the first compression method. And a step of copying the image information by compressing it with a second compression method; and c) if the first compression method is selected, or if the second compression method is selected and the image information to be copied is 2
An image information processing method comprising: a step of copying image information to be copied as it is when the image information is compressed by a compression method. 7. The first image information compression method is MH (Mo
defined Hoffman) method or MR (Mo
The second image information compression method is an MMR (Modified Modified) method.
ed Read) method.
The described image information processing method.