| Abstract
Transform coding consists of a scalar quantization
of the features of an image representation. These features should be independent
enough to justify the scalar approach. The coefficients of the commonly
used DCT representation still show some dependence that may reduce its
efficiency.
In this work, a perceptually inspired non-linear
transform is used to map the DCT into a new representation that largely
reduces the statistical and perceptual relations between the coefficients
thus improving the compression performance.
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