A shared lossless Haar transform and an appended type-IV discrete cosine transform are combined to form a lossless discrete cosine type-IV transform having a fast pipeline architecture for providing fast reversible lossless DCT-IV transform data.
Keywords: discrete cosine transform, Haar wavelet transform, image compression, lossless discrete cosine transform, lossless image compression, modulated lapped transform
International Class: G06F17/14