COMPRESSION OF DIGITAL IMAGES BY BLOCK TRUNCATION CODING - A SURVEY

被引:66
作者
FRANTI, P
NEVALAINEN, O
KAUKORANTA, T
机构
[1] Univ of Turku, Turku
关键词
D O I
10.1093/comjnl/37.4.308
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
Block truncation coding (BTC) is a lossy moment preserving quantization method for compressing digital gray-level images. Its advantages are simplicity, fault tolerance, the relatively high compression efficiency and good image quality of the decoded image. Several improvements of the basic method have been recently proposed in the literature. In this survey we will study the basic algorithm and its improvements by dividing it into three separate tasks; performing quantization, coding the quantization data and coding the bit plane. Each phase of the algorithm will be analyzed separately. On the basis of the analysis, a combined BTC algorithm will be proposed and the comparisons to the standard JPEG algorithm will be made.
引用
收藏
页码:308 / 332
页数:25
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