RT Journal Article ID 17b6086c4754fb30 A1 Ponomarenko, N. N. A1 Lukin, V. V. A1 Egiazarian, Karen O. A1 Lepisto , L. T1 ADAPTIVE JPEG LOSSY COMPRESSION OF COLOR IMAGES JF Telecommunications and Radio Engineering JO TRE YR 2011 FD 2011-09-29 VO 70 IS 15 SP 1343 OP 1352 K1 adaptive compression K1 color images AB JPEG based compression of color digital images in visually lossless manner with adaptation to image/distortion characteristics and providing appropriately large compression ratio is considered. Adaptation is performed for raw images with taking into account further nonlinear transformations carried out in imaging devices as digital cameras before compression. Blur and noise parameters are estimated and/or predicted and they serve for setting a proper quantization table for JPEG compression. The proposed approach is tested for a large number of real life color photos. It is demonstrated that compression ratio can be on the average increased by about two times compared to super-high quality (SHQ) mode used in modern digital cameras. No visible differences are observed between images compressed by adaptive JPEG and in SHQ mode. PB Begell House LK https://www.dl.begellhouse.com/journals/0632a9d54950b268,2c1fadd653eb3222,17b6086c4754fb30.html