Lossless encoding and decoding method of Bayer image
A lossless encoding and decoding method technology, applied in image communication, solid image signal generator, image signal generator, etc., can solve the problems of high chip design and manufacturing costs, low compression rate, large memory overhead of front-end processing chips, etc.
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[0042] The invention focuses on the lossless compression of the CCD array data at the acquisition end of the digital camera, that is, the Bayer image, and proposes a lossless encoding and decoding method of the Bayer image. Based on the characteristics of the Bayer image and the research on the Bayer image format, a variety of prediction modes are proposed, and the optimal prediction method is selected to entropy encode the prediction difference, so as to realize the lossless compression of the Bayer image, which not only saves the front-end processing chip in the camera Memory overhead, and reduce chip design and manufacturing costs.
[0043] The Bayer image lossless encoding and decoding method of the present invention includes two parts of the Bayer image lossless encoding and decoding. The coding content includes the block division of the Bayer picture, the prediction of the image block, the selection of the optimal prediction mode, and the entropy coding of the prediction...
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