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Abstract

An image processing system for image compression and decompression includes a template making part for producing a template from an image with respect to one target pixel in the image, the template containing a prescribed number of reference pixels selected from among pixels preceding the target pixel on a plurality of scanning lines including a current scanning line, the reference pixels having respective colors which have been detected, a storage part for storing the colors of the reference pixels in the template, and a state index detector for detecting a state index of the template from the colors of the reference pixels by referring to a state index table in which correspondence between values of the state index and states of colors of the reference pixels is pre-defined, so that the image is encoded into a compressed image and the compressed image is decoded into a reconstructed image in accordance with the thus detected state index of the template.

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