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Various Leveled Prediction and Context Adaptive Coding for Lossless Color Image Compression

Journal: International Journal of Scientific Engineering and Technology (IJSET) (Vol.4, No. 2)

Publication Date:

Authors : ; ;

Page : 91-93

Keywords : Lossless image compression; Pixel Prediction; Arithmetic Coding; RCT; Huffman coding;

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Abstract

Lossless image compression is a class of image compression algorithms that allows the original image to be perfectly reconstructed from the compressed image. This undertaking shows another lossless color image compression algorithm based on pixel prediction and arithmetic coding. Lossless squeezing of a Red, Green and Blue (RGB) picture is carried out by first decorrelating utilizing Reversible Color Transform (RCT). The got Y part is then compacted by a conventional lossless grayscale picture clamping strategy. The chrominance image is encoded utilizing Arithmetic coding and pixel prediction system. By utilizing RCT the forecast lapse is characterized and arithmetic coding is connected to the mistake signal. The packed image and encoded picture is joined to structure a lossless compacted RGB picture. It is demonstrated that this system diminishes the bit rates contrasted and JPEG 2000 and JPEG-XR. With a specific end goal to further lessen the bit rate the compression strategies and the pixel prediction strategy can be altered for better execution.

Last modified: 2015-02-02 13:25:19