Title :
Restoring halftoned color-quantized image with genetic algorithm
Author :
Lui, Ka-Chun ; Fung, Yik-Hing ; Chan, Yuk-Hee
Author_Institution :
Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ., China
Abstract :
Restoration of color quantized images is rarely addressed in the literature especially when the images are color quantized with halftoning. Conventional color image restoration algorithms are not suitable for handling this problem. A new restoration algorithm based on a genetic algorithm is presented in this paper. This algorithm makes use of the available color palette and the mechanism of a halftoning process to derive useful a priori information for restoration. Simulation results showed that it was able to provide a very promising restoration result.
Keywords :
genetic algorithms; image coding; image colour analysis; image restoration; a priori information; color palette; genetic algorithm; halftoned color-quantized image; image restoration; Bandwidth; Color; Degradation; Digital images; Genetic algorithms; Image restoration; Low pass filters; Quantization; Signal processing algorithms; Signal restoration;
Conference_Titel :
Intelligent Multimedia, Video and Speech Processing, 2004. Proceedings of 2004 International Symposium on
Print_ISBN :
0-7803-8687-6
DOI :
10.1109/ISIMP.2004.1434035