| http://www.w3.org/ns/prov#value | - A system for compressing and decompressing image data signals representing an original image characterized by p(x,y), where x and y are the spatial coordinates of pixels of the image, which system comprises:(a) means to convolve said image data signals with coded random pattern data signals generated according to a blurring function ##EQU11## where N is an integer greater than one and xn and yn ar
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