Performance Analysis of Screen Contents Coding Tools to Reduce Inter-Color Component Correlation

Color coding to reduce errors.

Modified SPIHT Algorithm for Coding Color Images using Inter-color Correlation

Most of the color image compression techniques reduce the redundancy between color components (R, G, B) by transforming the color primaries into a de-correlated color space, such as YIQ or YUV. As the human visual system is more sensitive to details in luminance than to details in chrominance, the chrominance components can be compressed at high rate. Instead of decorrelating the color planes, ...

Inter-Subband Correlation for Predictive Pyramid Coding

Recently, fractal and subband coding were combined to achieve good picture quality at very low bit rates, and the technique was named predictive pyramid coding (PPC) [5]. In this paper, we improve PPC performance by utilizing the inter-subband correlation between different groups of subbands. As a result, we can reduce the bit rate by 0.0110.043 bpp without degrading the coded picture quality,...

Inter Color and Inter Intra Band Prediction on Reversible Wavelet for Lossless Progressive Color Coding

We propose a new lossless progressive color coding of color still images. An image is rstly transformed by reversibleWavelet transform such as S transform due to progressive transmission of image. And we utilize for an improvement of the compression performance not only the inter color correlation but also the inter/intra band correlation of the subbands of reversible wavelet transform. We show...

Progressive Image Coding Using Regional Color Correlation

Most color compression systems reduce the redundancies between the RGB color components by transforming the color primaries into a decorrelated color space, such as YIQ or YUV. In this paper a different compression approach is proposed. Since the high correlation of the RGB color channels implicitly suggests a localized functional relation between the components, it is used here in an alternati...