Method and device for processing video data for display on a display device
OwnerCedric Thebault, Carlos Correa +1inventors
InventorsCedric Thebault, Carlos Correa, Sebastien Weitbruch
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Abstract
The visible pattern of classical matrix dithering in case of applications with moving pictures and static pictures shall be suppressed more effectively. Therefore, it is proposed to change a dithering pattern in the dithering block non-periodically. This can be effected by a random generator which may be activated by a motion detector. The motion detector enables to individually alternate the dithering function depending on moving or static pictures.
Claims8
Method for processing video data for display on a display device having a plurality of luminous elements by
- applying a gamma function to at least one part of said video data and then applying a dithering function to said video data to refine the grey scale portrayal of video pictures of said video data,
- wherein
- a modulation function being non-periodical is provided and
- the phase or amplitude of said dithering function is changed in accordance with said modulation function when applying said dithering function to said at least one part of said video data.
Device for processing video data for display on a display device having a plurality of luminous elements including
- gamma means for applying a gamma function to at least one part of said video data and
- dithering means for applying a dithering function to said video data to refine the grey scale portrayal of video pictures of said video data,
- wherein
- said dithering means includes modulation means for modulating the phase or amplitude of the dithering function with a modulation function being non-periodical.
Dependencies are inferred from the claim text.