Method and system for appending information to graphical files stored in specific graphical file formats

• US 6,931,603 B2
• Filed: 11/29/2001
• Issued: 08/16/2005
• Est. Priority Date: 11/29/2001
• Status: Expired due to Fees

• Current Assignee: Intellectual Discovery Co., Ltd.
• Original Assignee: International Business Machines Corporation
• Inventors: Boegelund, Flemming
• Primary Examiner(s): Bayerl, Raymond J.
• Application Number:
  US09/998,045
• Publication Number:
  US 20030098877A1
• Time in Patent Office: 1,356 Days
• Field of Search: 345/764, 345/854, 345/716, 345/846, 345/835, 345/730, 345/732, 345/731, 345/847, 345/808, 345/760, 345/738, 345/748, 715/512, 715/501.1, 715/530, 715/514, 715/515, 715/520, 382/232, 382/243, 382/248, 382/250, 382/233
• US Class Current: 715/846
• CPC Class Codes: G06F 16/58 Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
• CPC Class Codes: G06F 16/9558 Details of hyperlinks; Management of linked annotations

Abstract

The present invention provides a method and system to append information to an image file containing a stored graphical image. The appended information relates to the contents of the graphical image. In the process of the present invention, there is an initial graphical file containing a stored image. During the creation of the graphical file (such as a PowerPoint file or Freelance Graphics file), the user can insert images, other objects or text onto the file. Some of the objects can be hyperlinks (referred to as “Hotspots”) to other files or other system resources. The graphical software stores information related to every object on the graphical file. During the process of converting a graphical image to a graphical image file format such as a JPEG file, the present invention takes the information concerning ‘Hotspot’ or other objects on the file on the graphical file and generates an appendix to the created graphical image file containing this ‘Hotspots’ information. In this process, the method of the present invention first reads the original length of the JPEG file. The present invention then attaches the appendix containing the ‘Hotspots’ information to the JPEG file. By this the length of the JPEG file is modified to show the addition of the attached information.

Claims

1. A method for appending information to a graphical image file comprising the steps of:

creating a graphical image, said image containing at least one object;

creating a graphical image file of said created graphical image;

defining an area on the created image as a hotspot area;

inserting the information about the defined hotspot area into a data record; and

generating an appendix to the graphical image, by reading the length of the graphical file, appending the data record containing the information about the defined hotspot area to the graphical image file and thereby creating a new graphical image file, and appending the length of the new graphical image file to the end of the new file, the generated appendix being the data record containing the information about the defined hotspot area.

2. The method as described in claim 1 wherein the length of the new graphical image file is stored in a field at the end of the graphical image file.

3. The method as described in claim 1 further comprising after said storing step, the step of decoding the data in the appendix to the graphical image file.

4. The method as described in claim 3 wherein said decoding step further comprises the steps of:

reading the length of the new graphical image file including the appendix portion of the file;

determining whether this graphical image file has an appendix;

determining the length of the original graphical image file when there is an appendix;

determining the starting location of the appended information; and

reading all information contained in the appended portion of the graphical image file.

5. The method as described in claim 4 wherein said length determination step comprises subtracting n number of bytes from the length of the new graphical image file.

6. The method as described in claim 5 wherein said start location determination step comprises using the length of the new graphical image file obtained from said length determination step to find a start of information field in the graphical image file.

7. A computer program product in a computer readable medium for appending information to a graphical image file comprising:

instructions for creating a graphical image, said image containing at least one object;

instructions for creating a graphical image file of said created graphical image;

instructions for defining an area on the created image as a hotspot area;

instructions for inserting the information about the defined hotspot area into a data record; and

instructions for generating an appendix to the graphical image file comprising instructions for reading the length of the graphical image file, instructions for appending the data record containing the information about the defined hotspot area to the graphical image file and thereby creating a new graphical image file, instructions for appending the length of the new graphical image file to the end of said new file and instructions for storing the new graphical image file, the appendix being the data record containing the information about the defined hotspot area.

8. The computer program product as described in claim 7 further comprising instructions for appending the generated appendix to the graphical image file.

9. The computer program product as described in claim 7 wherein the instructions for defining an area on the created image as a hotspot area further comprises instructions for using an image creation tool.

10. The computer program product as described in claim 7 wherein the instructions for defining an area on the created image as a hotspot area further comprises instructions for using an external tool.

11. The computer program product as described in claim 7 wherein said storing instructions further comprise instructions for storing the length of the new graphical image file at the end of the graphical image file.

12. The computer program product as described in claim 7 further comprising after said storing instructions, instructions for decoding the data in the appendix to the graphical image file.

13. The computer program product as described in claim 12 wherein said decoding instructions further comprise:

instructions for reading the length of the new graphical image file including the appendix portion of the file;

instructions for determining whether this graphical image file has an appendix;

instructions for determining the length of the original graphical image file when there is an appendix;

instructions for determining the starting location of the appended information; and

instructions for reading all information contained in the appended portion of the graphical image file.

14. The computer program product as described in claim 13 wherein said length determination instructions further comprise instructions for subtracting n number of bytes from the length of the new graphical image file.

15. The computer program product as described in claim 14 wherein said start location determination instructions further comprise instructions for using the length to find a start of information field in the graphical image file.