Method for compressing and decompressing images by subdividing pixel color distributions

摘要: The present invention provides methods and apparatus for representing visual images in compressed digital form. A series of is provided to a random access memory one frame at time. compressor the divides into predefined number blocks. Each block tested determine whether has homogeneous color distribution. If distribution as defined by selected homogeneity test, each pixel that encoded with single value. does not have distribution, split two distributions, greater luminance than average first smaller These distributions are separately same process repeated until region been resolved distributions. Distributions then merged check homogeneous. After merging, pixels color.