Nearly-lossless autoregressive image compression

A flexible accurate technique for improving image compression properties wi th linear image compressing transforms is presented. This is a reliable ite rative algorithm for the nearly-lossless autoregressive (NLAR) compression of images, which permits control of errors produced in each pixel intensity while preserving the original image intensity range. The convergence of th is new algorithm is demonstrated, both theoretically and numerically. Its r elationship to other types of nearly-lossless compression, as well as to tr aditional lossless and lossy approaches, is discussed. (C) 1999 Elsevier Sc ience B.V. All rights reserved.