FIELD: digital image processing, in particular, delivery of several broadcast TV programs in standard TV channel. SUBSTANCE: method involves generation of tolerant deviations of levels of each pixel in image using data on anisotropy in pixel vicinity, iterating procedure for alternation of sampling matrix of elementary blocks which are converted by two-dimensional discrete cosine transform. This operation is achieved by division of matrix by preset factors of broadcast precision until errors in decoding of images in each pixel is not less than preset tolerant deviations. EFFECT: increased perceived quality of decoded image for given compression factor or increased compression factor for given perceived quality of decoded image. 2 dwg
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Authors
Dates
1998-11-20—Published
1994-04-29—Filed