A New Color Image Coding Method
A technology of color image and coding method, which is applied in the field of color image coding, and can solve the problems that the optimal interpolation of RGB color images cannot be guaranteed, and the efficiency of color image coding compression is restricted.
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[0082] The present invention mainly adopts the mode of simulation experiment to verify the feasibility of the system model, and all steps have been verified by experiment. In order to realize the image compression based on the transform domain down-sampling technology, the specific implementation steps are as follows:
[0083] Step 1, image preprocessing
[0084] First, record the original RGB color image with a resolution of w×h as X, where w is the width of the image, and h is the height of the image;
[0085] Secondly, the three color component images of red, green and blue are extracted according to the standard method of extracting RGB image components, and the extracted three color component images of red, green and blue are respectively recorded as R, G and B, where R, G and The resolution of B is w×h;
[0086] Then, then, make the width and height of each square image block be 8, i.e. n=8; divide R into N=(w×h) / 8 according to the standard non-overlapping image block m...
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