Modified VQ-BTC algorithm for image compression

Chou Chen Wang, Chin Hsing Chen, I. Hong Chen

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


VQ-BTC is a recent technique used in the coding of image data to combat edge degradation produced by vector quantisation (VQ) or block truncation coding (BTC). However, it has high encoding complexity and needs a large amount of memory to store 31 codebooks at both the encoder and decoder. A modified VQ-BTC (MVQ-BTC) algorithm is presented which achieves a performance close to that of VQ-BTC, but needs only three codebooks, and requires less computation time than VQ-BTC.

Original languageEnglish
Pages (from-to)1390-1392
Number of pages3
JournalElectronics Letters
Issue number14
Publication statusPublished - 1998 Jul 9

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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