Lossless compression algorithm for grey scale images based on OBDD
2007; China Aerospace Science and Industry Group; Linguagem: Inglês
ISSN
1000-7024
Autores Tópico(s)Advanced Data Compression Techniques
ResumoA lossless compression algorithm for grey scale images based on ordered binary-decision diagrams(OBDD)is presented. A grey scale image is separated into several bit-planes individually, then every bit-plane is described into a OBDD because of the switch theory of bi-level images. The OBDDs are encoded efficiently, then arithmetic coding is used to remove the residual redundancy. The results obtained shows the algorithm has a better compression ratio than WinZIP.
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