Selective Edge Blending Based on Displayed Content

• US 20090135200A1
• Filed: 06/28/2005
• Published: 05/28/2009
• Est. Priority Date: 06/28/2005
• Status: Abandoned Application

• Current Assignee: Thomson Licensing (Vantiva SA)
• Original Assignee: Thomson Licensing (Vantiva SA)
• Inventors: Schultz, Mark Alan
• Application Number:
  US11/922,540
• Publication Number:
  US 20090135200A1
• Time in Patent Office: Days
• US Class Current: 345/629
• CPC Class Codes: G09G 2300/026 Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
• CPC Class Codes: G09G 2310/0232 Special driving of display border areas
• CPC Class Codes: G09G 2340/10 Mixing of images, i.e. displayed pixel being the result of an operation, e.g. adding, on the corresponding input pixels
• CPC Class Codes: G09G 5/14 Display of multiple viewports
• CPC Class Codes: H04N 9/12 Picture reproducers H04N9/11 takes precedence
• CPC Class Codes: H04N 9/3147 Multi-projection systems displays in general H04N9/12; video walls G06F3/1446, G09G2300/026

Abstract

A method and an image processing system for blending edges of images for collective display. The method includes the step of evaluating at least a pair of images whose edges border each other when displayed to determine whether the collective display of images will benefit from blending of the edges (113). If so, at least portions of the edges are blended.

Claims

1. A method for blending edges of images for collective display, comprising the steps of:

evaluating at least a pair of images whose edges border each other when displayed to determine whether the collective display of the at least pair of images will benefit from blending of the edges; and

if so;

blending at least first portions of the edges of the at least pair of images.

2. The method according to claim 1, wherein said blending step further comprises the step of changing data values in a look-up-table.

3. The method according to claim 1, wherein said blending step further comprises the step of selecting at least one blending algorithm optimal for blending the edges, and the blending of the edges is performed in accordance with the selected at least one blending algorithm.

4. The method according to claim 1, wherein the first portions of the edges are blended, and at least second portions of the edges are not blended.

5. The method according to claim 1, wherein the edges are not blended if the collective display of the at least pair of images will not benefit from blending.

6. The method according to claim 5, further comprising the step of changing data values in a look-up-table to prevent blending of the edges.

7. The method according to claim 5, further comprising the step of selecting at least one display algorithm optimal for presenting the edges as unblended, wherein the edges are presented in accordance with the selected at least one display algorithm.

8. A machine readable storage, having stored thereon a computer program having a plurality of code sections executable by a machine for causing the machine to selectively implement edge blending by performing the steps of:

evaluating at least a pair of images whose edges border each other when displayed to determine whether the collective display of the at least pair of images will benefit from blending of the edges; and

if so;

blending at least first portions of the edges of the at least pair of images.

9. The machine readable storage of claim 8, wherein said blending step comprises the step of changing data values in a look-up-table.

10. The machine readable storage of claim 8, wherein said blending step comprises the step of selecting at least one blending algorithm optimal for blending the edges, and the blending of the edges is performed in accordance with the selected at least one blending algorithm.

11. The machine readable storage of claim 8, wherein the first portions of the edges are blended, and at least second portions of the edges are not blended.

12. The machine readable storage of claim 8, Wherein the edges are not blended if the collective display of the at least pair of images will not benefit from blending.

13. The machine readable storage of claim 12, further causing the machine to perform the step of changing data values in a look-up-table to prevent blending of the edges.

14. The machine readable storage of claim 12, further causing the machine to perform the step of selecting at least one display algorithm optimal for presenting the edges as unblended, wherein the edges are presented in accordance with the selected at least one display algorithm.

15. Apparatus for displaying images comprising:

means for receiving images for display;

means for evaluating at least a pair of images whose edges border each other when displayed to determine whether the collective display of the at least pair of images will benefit from blending of the edges; and

;

means for blending at least first portions of the edges of the at least pair of images when the at least pair of will benefit from blending of the edges.

16. The apparatus according to claim 15 wherein the evaluating means further comprises a look-up table and algorithm controller.

17. The apparatus according to claim 15 wherein the blending means further comprises at least one edge blending processor which executes at least one edge blending process in response to data from the evaluating means to carry out edge blending.