1. J. Kominek, Still image compression an issue of quality”, available from University of Waterloo, Waterloo, Ontario, Canada, Department of Computer Science. http://links.uwaterloo.ca/pub/Fractals/Papers/Waterloo/kominek94b.ps.gz, electronic edn (1994).
2. C. Shannon, The mathematical theory of communication, Bell Syst. Tech. J. 27, 379–423; 623–656 (1948).
3. Quantizing for minimum distortion;Max;IEEE Trans. Inform Theory,1960
4. Visual fidelity criterion and modelling;Budrikis;IEEE Proc,1972
5. Quantitative fidelity criterion for image processing applications;Carl;SPIE Proc,1987