Title :
Improved image partitioning for compression and representation using the lab color space in the LAR image codec
Author :
Strauss, Clement ; Pasteau, Francois ; Babel, Marie ; Deforges, Olivier ; Bedat, Laurent
Author_Institution :
IETR/Image Group Lab., INSA Rennes, Rennes, France
Abstract :
The LAR codec is an advanced image compression method relying on a quadtree partitioning of the image. The partitioning strongly impacts the LAR codec efficiency and enables both compression and representation efficiency. In order to increase the perceptual representation abilities without penalizing the compression efficiency we introduce and evaluate two partitioning criteria working in the Lab color space. These criteria are confronted to the original criterion and their compression and robustness performances are analyzed.
Keywords :
codecs; data compression; image coding; image representation; quadtrees; LAR codec efficiency; advanced image compression method; compression efficiency; image codec; image partitioning; image representation; lab color space; perceptual representation abilities; quadtree partitioning; representation efficiency; Codecs; Encoding; Image coding; Image color analysis; Measurement; Partitioning algorithms; Transform coding;
Conference_Titel :
Signal Processing Conference, 2010 18th European
Conference_Location :
Aalborg
