Patent ID: 8582666
Filing Date: 2013-11-12
Classification: G06T,H04N

Abstract:
1. A decompression apparatus comprising: an input or inputs for receiving at least partially compressed image information and a plurality of control parameter sets, the at least partially compressed image information defining a content of an image; a memory for storing the received plurality of the control parameter sets, wherein each control parameter set comprises a unique set of filter coefficients and for storing representative combinations of pixel values; a decompressor configured to at least partially decompress the image information to output a plurality of combinations of pixel values associated with particular pixels in the image, wherein the pixel values can be one of, luminance values, motion vector values, gradient values, texture values and combination thereof: a selector configured to classify each of the plurality of combination of pixel values output from the decompressor by comparing the representative combination of pixel values from the stored memory with each of the outputs of the decompressor to select one of the representative combination of pixel values for each output of the decompressor which minimizes a distance measure between the combination of pixel values and the representative combination of pixel values; the selector for selecting a respective one of the received plurality of control parameter sets for each of said combination of pixel values output from the decompressor dependent upon the selected representative combination of pixel values from the stored memory; an image processing circuit configured to post-process the at least partially decompressed image information, using the selected respective ones of the control parameters sets to control post-processing for pixels in the image.