Patent ID: 8963948
Filing Date: 2015-02-24
Classification: G09G,H04N

Abstract:
1. A circuit for color space conversion and implemented at least in part in hardware, comprising: a conversion unit that performs a linear color space compression by converting a pixel signal from a first color space to a second color space, the second color space having a plurality of color dimensions, the conversion unit generating a plurality of pixel components of the color dimensions for the pixel signal, and compressing the pixel components to output a plurality of corresponding compressed pixel components when each of the pixel components is within a corresponding compression interval, the compressed pixel components within a predetermined range of the color dimensions of the second color space, wherein the conversion unit comprises a lookup table for storing the pixel components and the corresponding compressed pixel components, wherein the conversion unit compresses the pixel components according to the lookup table, wherein each pixel component in the corresponding compression interval has a linear relationship with a corresponding compressed pixel component, wherein the first color space is an xvYCC color space, and the second color space is an sRGB color space, wherein each of the corresponding compression intervals is adjustable according to values stored in the conversion unit, and wherein a first pixel value interval of the compression intervals represents a first threshold and an upper limit value of each pixel component, and wherein the corresponding compressed pixel component of a pixel component is not lower than the first threshold and not higher than an upper limit value of the predetermined range.