Intelligent saturation of video data

Details Intelligent saturation of video data Intelligent saturation of video data

2005-12-07

2010-06-08

Bali, Vikkram (Department: 2624)

Image analysis

Image enhancement or restoration

Intensity, brightness, contrast, or shading correction

C382S162000, C348S453000, C348S256000, C348S645000, C358S520000

Reexamination Certificate

active

07734114

ABSTRACT:
The intelligent saturation controller calculates the exact maximum saturation any valid YCbCr pixel can undergo before it becomes invalid in RGB space. The controller models the saturation operation in RGB color space and calculates the maximum saturation level at which the RGB values falls outside the valid range. The saturation operation is performed independently for every pixel of the incoming video frame and ensures that each output pixel is a valid. The controller finds the maximum saturation for each input pixel and checks whether it is less than the input saturation factor. If so, then this calculated maximum saturation value is applied. If not, the input saturation factor is applied. Accordingly, the output RGB pixels are valid and no clamping is necessary if no other video processing is done in YCbCr space. Increasing the saturation of the video signal results in a more vivid and more colorful picture.

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