Method, apparatus and system for visual gamma correction of displays
AssigneeThomson Licensing
InventorBongsun Lee
Life of this patent
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Abstract
A method, apparatus and system for visual gamma correction of a display system includes retrieving input gamma information from input content, determining at least one pattern representing luminance of the received content based upon at least the retrieved gamma information, displaying the at least one determined pattern representing the luminance of the received image content and at least one corresponding reference image on the display system, and adjusting the brightness and contrast of the least one reference image on the display system to approach the luminance of a corresponding determined pattern to determine a corrected gamma for the display system.
Claims25
A method for visual gamma correction of a display system, comprising:
- retrieving gamma information relating to received image content;
- determining at least one pattern representing luminance of the received image content based upon at least the retrieved gamma information;
- displaying the at least one determined pattern representing the luminance of the received image content and at least one corresponding reference image on the display system;
- and
- adjusting brightness and contrast of the at least one reference image on the display system to approach the luminance of a corresponding determined pattern.
An apparatus for visual gamma correction of a display system, comprising:
- a memory for storing at least gamma information and control programs and a processor for executing the control programs, the apparatus configured to:
- retrieving gamma information relating to received image content;
- determine at least one pattern representing luminance of the received image content based upon at least the retrieved gamma information;
- enable the display of the at least one determined pattern representing the luminance of the received image content and at least one corresponding reference image on the display system;
- and
- enable the adjustment of brightness and contrast of the at least one reference image on the display system to approach the luminance of a corresponding determined pattern.
A system for visual gamma correction of a display system, comprising:
- a content source for providing image content and gamma information relating to the image content;
- a video playback device for receiving the image content and the gamma information from the content source and for communicating display images to the display system;
- the display system for displaying the images communicated from the playback device;
- and
- a gamma correction device including a memory for storing at least the gamma information and control programs and a processor for executing the control programs, the gamma correction device configured to:
- retrieve the gamma information relating to the received image content;
- determine at least one pattern representing luminance of the received image content based upon at least the retrieved gamma information;
- enable the display of the at least one determined pattern representing the luminance of the received image content and at least one corresponding reference image on the display system;
- and
- enable the adjustment of brightness and contrast of the at least one reference image on the display system to approach the luminance of a corresponding determined pattern.
Dependencies are inferred from the claim text.