Abstract:This work develops iterative algorithms for decoding cascade-coded images by Relative Entropy (RE) minimization. In cascade coding, blocks ofanimage are firsttransform-coded and then theretained coefficients are transmitted by using moment-preserving Block Truncation Coding (BTC). The BTC coding introduces a quantization error in the values of the retained coefficients. Upon reception, the distorted coefficients are used in reconstructing the image by the inverse transform, with the unretained coefficients set… Show more
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