Method and device for processing a peripheral image

1. A method for processing at least one peripheral image, said at least one peripheral image being displayed on a surface that extends beyond borders of a central image displayed on a screen, said at least one peripheral image corresponding to an extension of said central image, the method comprising:

obtaining information representative of a reflectance level of said surface; and

adapting a luminance of said at least one peripheral image according to said information representative of a reflectance level by applying a light correction function to the luminance of said at least one peripheral image, the correction function being such that for at least a pixel of said at least one peripheral image, a first luminance level of said pixel when displayed on a first surface having a first reflectance level is lower than a second luminance level of said pixel when displayed on a second surface having a second reflectance level, the first reflectance level being higher than the second reflectance level.

2. The method according to claim 1 , wherein said information is obtained by capturing a reflection of a light projected with a determined intensity on said surface.

3. The method according to claim 1 , wherein said information is obtained according to an albedo of said surface and a value of an angle between a projector projecting said at least one peripheral image and a normal to said surface.

4. The method according to claim 1 , wherein said light correction function decreases luminance of said peripheral image when said luminance of said at least one peripheral image is above a high luminance value and maintains luminance of said peripheral image when said luminance of said at least one peripheral image is below a low luminance value.

5. The method according to claim 4 , wherein said low luminance value and high luminance value respectively correspond to a low rendered luminance level and a high rendered luminance level of said displayed at least one peripheral image for increasing luminance of said at least one peripheral image when displayed at a reference reflectance level.

6. The method according to claim 1 , wherein adapting luminance of said peripheral image comprises

applying a light correction function adapted to a reference reflectance level; and

decreasing luminance of said peripheral image to adapt to a global luminance level.

7. The method according to claim 1 , wherein adapting luminance of said at least one peripheral image comprises increasing a luminance of a moving object in the at least one peripheral image.

8. A device for processing at least one peripheral image, said at least one peripheral image being displayed on a surface that extends beyond borders of a central image displayed on a screen, said at least one peripheral image corresponding to an extension of said central image, the device comprising a memory associated with a processor configured to:

obtain information representative of a reflectance level of said surface; and

adapt a luminance of said at least one peripheral image according to said information representative of a reflectance level by applying a light correction function to a luminance of said at least one peripheral image, the correction function being such that for at least a pixel of said at least one peripheral image, a first luminance level of said pixel when displayed on a first surface having a first reflectance level is lower than a second luminance level of said pixel when displayed on a second surface having a second reflectance level, the first reflectance level being higher than the second reflectance level.

9. The device according to claim 8 , wherein said information is obtained by capturing a reflection of a light projected with a determined intensity on said surface.

10. The device according to claim 8 , wherein said information is obtained according to an albedo of said surface and a value of an angle between a projector projecting said at least one peripheral image and a normal to said surface.

11. The device according to claim 8 , wherein said device belongs to a system comprising a video projecting device.

12. The device according to claim 8 , wherein the processor is further configured to increase a luminance of a moving object in the at least one peripheral image.

13. The device according to claim 8 , wherein said light correction function decreases luminance of said peripheral image when said luminance of said at least one peripheral image is above a high luminance value and maintains luminance of said peripheral image when said luminance of said at least one peripheral image is below a low luminance value.

14. The device according to claim 13 , wherein said low luminance value and high luminance value respectively correspond to a low rendered luminance level and a high rendered luminance level of said displayed at least one peripheral image for increasing luminance of said at least one peripheral image when displayed at a reference reflectance level.

15. The device according to claim 8 , wherein the processor is further configured:

to apply a light correction function adapted to a reference reflectance level; and

to decrease luminance of said peripheral image to adapt to a global luminance level, for adapting luminance of said peripheral image.

16. A non-transitory processor readable medium having stored therein instructions for processing at least one peripheral image, said at least one peripheral image being displayed on a surface that extends beyond borders of a central image displayed on a screen, said at least one peripheral image corresponding to an extension of said central image, said instructions causing a processor to

obtain information representative of a reflectance level of a surface; and

adapt a luminance of said at least one peripheral image according to said information representative of a reflectance level by applying a light correction function to a luminance of said at least one peripheral image, the correction function being such that for at least a pixel of said at least one peripheral image, a first luminance level of said pixel when displayed on a first surface having a first reflectance level is lower than a second luminance level of said pixel when displayed on a second surface having a second reflectance level, the first reflectance level being higher than the second reflectance level.

17. The non-transitory processor readable medium of claim 16 , wherein said information is obtained by capturing a reflection of a light projected with a determined intensity on said surface.

18. The non-transitory processor readable medium of claim 16 , wherein said information is obtained according to an albedo of said surface and a value of an angle between a projector projecting said at least one peripheral image and a normal to said surface.

19. The non-transitory processor readable medium of claim 16 , wherein said light correction function decreases luminance of said peripheral image when said luminance of said at least one peripheral image is above a high luminance value and maintains luminance of said peripheral image when said luminance of said at least one peripheral image is below a low luminance value.

20. The non-transitory processor readable medium of claim 19 , wherein said low luminance value and high luminance value respectively correspond to a low rendered luminance level and a high rendered luminance level of said displayed at least one peripheral image for increasing luminance of said at least one peripheral image when displayed at a reference reflectance level.

21. The non-transitory processor readable medium of claim 16 , wherein adapting luminance of said peripheral image comprises

applying a light correction function adapted to a reference reflectance level; and

decreasing luminance of said peripheral image to adapt to a global luminance level.

22. The non-transitory processor readable medium of claim 16 , wherein adapting luminance of said at least one peripheral image comprises increasing a luminance of a moving object in the at least one peripheral image.