Title :
Adaptive subsampling of color images
Author :
Murching, Anil M. ; Woods, John W.
Author_Institution :
Dept. of Electr. Comput. & Syst. Eng., Rensselaer Polytech. Inst., Troy, NY, USA
Abstract :
Conventional coding of digital color images is done in a luminance-chrominance domain, and the chrominance components are subsampled in a fixed ratio with respect to the luminance. We propose an adaptive method of subsampling the chrominance components that improves the quality vs. sample rate trade-off. In applications such as compositing color graphics images, the advantage of using the adaptive method as against the conventional method is demonstrated
Keywords :
adaptive signal processing; brightness; image coding; image colour analysis; image reconstruction; image sampling; adaptive subsampling; chrominance components; color graphics images compositing; digital color images; image coding; image reconstruction; luminance-chrominance domain; quality; sample rate; Chromium; Color; Decorrelation; Frequency; Graphics; Image coding; Image processing; Systems engineering and theory; Testing; Transform coding;
Conference_Titel :
Image Processing, 1994. Proceedings. ICIP-94., IEEE International Conference
Conference_Location :
Austin, TX
Print_ISBN :
0-8186-6952-7
DOI :
10.1109/ICIP.1994.413702
