SYSTEMS AND METHODS FOR BLOCK RECOMPOSITION FOR COMPOUND IMAGE COMPRESSION

摘要

A new approach is proposed that contemplates systems andmethods to support block-based compression of a compound image byskip-ping "don't care" blocks in the layers of the image while neitherintroducingsignificant overhead nor requiring changes to the compression method used.The block-based compression approach first segments a compound imageinto multiple layers and then recomposes a new set of image layers, possiblywith new dimensions, from only the non-"don't care" blocks in the layers ofthe original image. The approach may later decompress the compressedim-age layers and restore the image by copying the decompressed blocks totheir respective positions in the original image.