METHOD OF ADAPTIVE SCALAR QUANTIZATION IN LOSSY IMAGE COMPRESSION SCHEMES
Saint-Petersburg State University of Information Technologies, Mechanics and Optics; Post graduate
Abstract. The problem of adaptive generation of quantization matrixes for lossy compression schemes, using spectral transformations is considered. The way of adaptive scalar quantization of spectral coefficients on the basis of weight criterion is offered, ways of calculation of this criterion are considered.
Keywords: image compression, adaptive quantization, weight criterion, JPEG.