HYBRID BLOCK TRUNCATION CODING FOR COLOR IMAGE COMPRESSION

摘要：

In this paper, a hybrid block truncation coding (HBTC) is presented for color image compression. In the HBTC algorithm to improve the compression ratio of the basic BTC, only luminance bit-map is employed to represent the edge information of the coding block. Moreover, an efficient previous proposed algorithm, adaptive quantization coding (AQC), is used to compress the two representative levels further. Simulation results show that the proposed HBTC performs as well as the BTC in terms of subject visual quality, and significantly improves the compression ratio of BTC from 2.88:1 to 6.00:1 with the limited performance losing about 0.66dB in PSNR.

关键词： block truncation coding color image compression adaptive quantization coding

作者: Jun Wang Yeun-Cheul Jeung Jong-Wha Chong

作者单位: Department of Electronics and Computer Engineering, Hanyang University, Seoul 133-791, Korea

会议类型: 国际会议

会议名称: 2009 IEEE International Conference on Network Infrastructure and Digital Content(2009年IEEE网络基础设施与数字内容国际会议 IEEE IC-NIDC2009)

会议地点: 北京

会议语种:英文

页码: 779-782

在线出版日期: 2009-11-06（万方平台首次上网日期，不代表论文的发表时间）