Method and apparatus for image data processing and computer program product used therein

• US 20010014897A1
• Filed: 12/18/2000
• Published: 08/16/2001
• Est. Priority Date: 12/17/1999
• Status: Abandoned Application

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Hata, Koichi, Tada, Hiroyuki
• Application Number:
  US09/739,143
• Publication Number:
  US 20010014897A1
• Time in Patent Office: Days
• US Class Current: 715/506
• CPC Class Codes: G06V 30/40 Document-oriented image-based pattern recognition
• CPC Class Codes: H04N 1/41 Bandwidth or redundancy reduction by scanning H04N1/17 ; methods or arrangements for coding, decoding, compressing or decompressing digital video signals H04N19/00
• CPC Class Codes: H04N 1/644 using a reduced set of representative colours, e.g. each representing a particular range in a colour space

Abstract

Disclosed here is a method and an apparatus for a structured image data processing, and a computer program product used therein. This allows structured image data information to be effectively transmitted and stored, keeping the quality of the information as perfect as possible. When structured image data and region data are entered, the routine firstly determines a region to be divided of document-image data. Structured image data includes image data and corresponding positioning data, while region data indicates the inner structure of image data by regions. Received the input data, the routine divides the document-image data into plural portions according to information on the region to be divided. Then each portion of the document image is processed suitable for its region characteristics. Then, the structured image data is renewed by replacing the positioning data and image data before processing with ones after processing.

Claims

1. A structured image data processing method that processes data including (i) structured image data composed of document-image data and corresponding positioning data, and (ii) region data indicating a structure of the document-image data, the processing method comprising the steps of:

a) determining a region to be divided of the document-image data according to predetermined dividing information;

b) dividing the document-image data into plural portions according to the region to be divided;

c) processing individually the portions of the document-image data; and

d) renewing the structured image data by replacing the positioning data and the document-image data before processing with positioning data and document-image data after processing.

2. The structured image data processing method of

claim 1

, wherein the dividing information includes data that affect a difference between the document-image data after a color-reducing process and the document-image data before the color-reducing process so that the difference is smaller than a predetermined value.

3. The structured image data processing method of

claim 1

, wherein the dividing information includes score data added to at least one of the positioning data and the region data.

4. The structured image data processing method of

claim 1

, wherein the dividing information includes (i) score data, (ii) a transmit capacity of a transmitting path for transmitting the structured image data, and (iii) an user'"'"'s request, which are added to at least one of the positioning data and the region data

5. A structured image data processing method that processes data including (i) structured image data composed of document-image data and corresponding positioning data, (ii) region data indicating a structure of the document-image data, and (iii) replaced media dividing information added to the region data, the processing method comprising the steps of:

a) determining a region to be divided of the document-image data according to the region to be divided;

b) dividing the document-image data into plural portions according to the replaced media dividing information;

c) replacing the document-image data divided according to the replaced media dividing information that is added to the region data corresponding to the divided document image; and

d) renewing the structured image data by replacing the positioning data, the document-image data, and the replaced media dividing information.

6. The structured image data processing method of

claim 5

, wherein the replaced media dividing information is formed by text data added to a region.

7. A structured image data processing method that processes data including first input data composed of (i) first structured image data containing first document-image data and corresponding positioning data, and (ii) first region data indicating a structure of the first document-image data by regions;

and second input data composed of (i) second structured image data containing second document-image data and corresponding positioning data, and (ii) second region data indicating a structure of the second document-image data by regions, the processing method comprising the steps of;

a) determining a region to be divided of the first input data as a region to be renewed, referring to the second input data;

b) dividing the first document-image data into plural portions according to the region to be divided;

c) renewing the divided structured image data of the first input data; and

d) combining the renewed first structured image data with the second structured image data.

8. A structured image data processing method that processes data including first input data composed of (i) first structured image data containing first document-image data and first positioning data, (ii) first region data indicating a structure of the first document-image data by regions, and (iii) first score data added to at least one of the first positioning data and the first region data;

and second input data composed of (i) second structured image data containing second document-image data and second positioning data, (ii) second region data indicating a structure of the second document-image data by regions, and (iii) second score data added to at least one of the second positioning data and the second region data, the processing method comprising the steps of;

a) determining a region to be divided of the first input data as a region to be renewed, referring to the second input data;

b) dividing the first document-image data into plural portions according to the region to be divided;

c) renewing the divided structured image data of the first input data; and

d) combining the renewed first structured image data with the second structured image data, using the first and the second score data.

9. An apparatus for a structured image data processing that processes data including (i) structured image data composed of document-image data and corresponding positioning data, and (ii) region data indicating an inner structure of the document-image data, the apparatus comprising:

a) divided region determining means for determining a region to be divided of the document-image data according to predetermined dividing information;

b) image-dividing means for dividing the document-image data into plural portions according to the region to be divided;

c) image processing means for processing individually the divided portions of the document-image data; and

d) structured image renewal means for renewing the structured image data by replacing the positioning data and the document-image data before processing with positioning data and document-image data after processing.

10. The apparatus for the structured image data processing of

claim 9

, wherein the dividing information includes data that affect a difference between the document-image data after a color-reducing process and the document-image data before the color-reducing process so that the difference is smaller than a predetermined value.

11. The apparatus for the structured image data processing of

claim 9

, wherein dividing information includes score data added to at least one of the positioning data and region data.

12. The apparatus for the structured image data processing of

claim 9

, wherein the dividing information includes (i) score data, (ii) a transmit capacity of a transmitting path for transmitting the structured image data, and (iii) an user'"'"'s request, which are added to at least one of the positioning data and the region data.

13. The apparatus for the structured image data processing that processes data including (i) structured image data composed of document-image data and corresponding positioning data, (ii) region data indicating a structure of the document-image data, and (iii) replaced media dividing information added to the region data, the apparatus comprising:

a) divided region determining means for determining a region to be divided of the document-image data according to the replaced media dividing information;

b) image-dividing means for dividing the document-image data into plural portions according to the region to be divided;

c) replacing means for replacing the divided document-image data with the replaced media dividing information that is added to the region data corresponding to the divided document image; and

d) structured image renewal means for renewing the structured image data by replacing the positioning data, the document-image data, and the replaced media dividing information.

14. The apparatus for the structured image data processing of

claim 13

, wherein the replaced media dividing information is formed by text data added to a region.

15. An apparatus for a structured image data processing that processes data including first input data composed of (i) first structured image data containing first document-image data and corresponding positioning data, and (ii) first region data indicating a structure of the first document-image data by regions;

and second input data composed of (i) second structured image data containing second document-image data and corresponding positioning data, and (ii) second region data indicating a structure of the second document-image data by regions, the apparatus comprising;

a) divided region determining means for determining a region to be divided of the first input data as a region to be renewed, referring to the second input data;

b) image-dividing means for dividing the first document-image data into plural portions according to the region to be divided;

c) structured image data renewal means for renewing the divided structured image data of the first input data; and

d) structured image data composition means for combining the renewed first structured image data with the second structured image data.

16. An apparatus for a structured image data processing that processes data including first input data composed of (i) first structured image data containing first document-image data and first positioning data, (ii) first region data indicating a structure of the first document-image data by regions, and (iii) first score data added to at least one of the first positioning data and the first region data;

and second input data composed of (i) second structured image data containing second document-image data and second positioning data, (ii) second region data indicating a structure of the second document-image data by regions, and (iii) second score data added to at least one of the second positioning data and the second region data, the apparatus comprising;

a) score-attached divided region determining means for determining a score-attached region to be divided of the first input data as a region to be renewed, referring to the second input data;

b) image-dividing means for dividing the first document-image data into plural portions according to the region to be divided;

c) structured image data renewal means for renewing the divided structured image data of the first input data; and

d) score-attached structured image data composition means for combining the renewed first structured image data with the second structured image data, using the first and the second score data.

17. A computer program product for a structured image data processing that processes data including (i) structured image data composed of document-image data and corresponding positioning data, and (ii) region data indicating an inner structure of the document-image data, the program product comprising:

a) a program code for determining a region to be divided of the document-image data according to predetermined dividing information;

b) a program code for dividing the document-image data into plural portions according to the region to be divided;

c) a program code for processing individually the portions of the document-image data; and

d) a program code for renewing the structured image data by replacing the positioning data and the document-image data before processing with positioning data and document-image data after processing.

18. The computer program product for the structured image data processing of

claim 17

, wherein the dividing information includes data that affect a difference between the document-image data after a color-reducing process and the document-image data before the color-reducing process so that the difference is smaller than a predetermined value.

19. The computer program product for the structured image data processing of

claim 17

, wherein the dividing information includes score data added to at least one of the positioning data and the region data.

20. The computer program product for the structured image data processing of

claim 17

, wherein the dividing information includes (i) score data, (ii) a transmit capacity of a transmitting path for transmitting the structured image data, and (iii) an user'"'"'s request, which are added to at least one of the positioning data and the region data.

21. A computer program product for a structured image data processing that processes data including (i) structured image data composed of document-image data and corresponding positioning data, (ii) region data indicating an inner structure of the document-image data, and (iii) replaced media dividing information added to the region data, the program product comprising:

a) a program code for determining a region to be divided of the document-image data according to the replaced media dividing information;

b) a program code for dividing the document-image data into plural portions according to the region to be divided;

c) a program code for replacing the divided document-image data with the replaced media dividing information added to the region data corresponding to the divided document image; and

d) a program code for renewing the structured image data by replacing the positioning data, the document-image data, and the replaced media dividing information.

22. The computer program product for the structured image data processing of

claim 21

, wherein the replaced media dividing information is formed by text data added to a region.

23. A computer program product for a structured image data processing that processes data including first input data composed of (i) first structured image data containing first document-image data and corresponding positioning data, and (ii) first region data indicating a structure of the first document-image data by regions;

and second input data composed of (i) second structured image data containing second document-image data and corresponding positioning data, and (ii) second region data indicating a structure of the second document-image data by regions, the program product comprising;

a) a program code for determining a region to be divided of the first input data as a region to be renewed, referring to the second input data;

b) a program code for dividing the first document-image data into plural portions according to the region to be divided;

c) a program code for renewing the divided structured image data of the first input data; and

d) a program code for combining the renewed first structured image data with the second structured image data.

24. A computer program product for a structured image data processing that processes data including first input data composed of (i) first structured image data containing first document-image data and first positioning data, (ii) first region data indicating a data structure of the first document-image data by regions, and (iii) first score data added to at least one of the first positioning data and the first region data;

and second input data composed of (i) second structured image data containing second document-image data and second positioning data, (ii) second region data indicating a data structure of the second document-image data by regions, and (iii) second score data added to at least one of the second positioning data and the second region data, the program product comprising;

a) a program code for determining a region to be divided of the first input data as a region to be renewed, referring to the second input data;

b) a program code for dividing the first document-image data into plural portions according to the region to be divided;

c) a program code for renewing the divided structured image data of the first input data; and

d) a program code for combining the renewed first structured image data with the second structured image data, using the first and the second score data.