Improved color image coding schemes based on single bit map block truncation coding

Yu-Chen Hu; I-Cheng Chang; Kuo-Yu Liu; Che-Lun Hung

doi:10.1117/1.OE.53.9.093104

11 September 2014 Improved color image coding schemes based on single bit map block truncation coding

Yu-Chen Hu, I-Cheng Chang, Kuo-Yu Liu, Che-Lun Hung

Author Affiliations +

Optical Engineering, Vol. 53, Issue 9, 093104 (September 2014). https://doi.org/10.1117/1.OE.53.9.093104

Abstract

Two color image coding schemes based on single bit map block truncation coding are proposed in this paper. The first scheme employs the optimal rule for single bit map generation. In addition, the quantization level recomputation process is designed. By using these two techniques, a fixed bit rate image coding scheme is introduced. To further cut down the required bit rates of the first scheme, the similar block prediction technique and the bit map omission technique are employed in the second scheme. According to the experimental results, the first scheme proposed significantly improves the image qualities of the compressed images compared to the traditional single bit map block truncation coding scheme. In addition, good image qualities of the compressed images are achieved by the second scheme while keeping bit rates low.

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Yu-Chen Hu, I-Cheng Chang, Kuo-Yu Liu, and Che-Lun Hung "Improved color image coding schemes based on single bit map block truncation coding," Optical Engineering 53(9), 093104 (11 September 2014). https://doi.org/10.1117/1.OE.53.9.093104

Published: 11 September 2014

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