Title :
Bit-depth expansion by adaptive filter
Author :
Liu, Chun Hung ; Au, Oscar C. ; Wong, Peter H W ; Kung, M.C. ; Chao, Shen Chang
Author_Institution :
Dept. of Electron. & Comput. Eng., Hong Kong Univ. of Sci. & Technol., Hong Kong
Abstract :
Bit-depth expansion is important for displaying a low bit-depth image in a high bit-depth monitor. Existing methods tend to give disturbing contouring or blurring artifacts. In this paper, we propose a novel, simple and efficient adaptive method to increase bit-depth taking advantage of the existing techniques to give superior image quality.
Keywords :
adaptive filters; computer displays; filtering theory; image enhancement; adaptive filter; adaptive method; bit-depth expansion; blurring artifacts; image quality; low bit-depth image display; Adaptive filters; Chaos; Companies; Computer displays; Consumer electronics; Dynamic range; Gold; Image converters; Low pass filters; Pixel; bit-depth; contour; inverse halftoning; xpansion;
Conference_Titel :
Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-1683-7
Electronic_ISBN :
978-1-4244-1684-4
DOI :
10.1109/ISCAS.2008.4541463
