Abstract
A Feature Correction Two Stage Vector Quantization (FC2VQ) algorithm was previously developed to compress gray-scale photo ID pictures. This algorithm is extended to color images in this paper. Two options are compared, which apply the FC2VQ algorithm in RGB and YCbCr color spaces, respectively. The RGB-FC2VQ algorithm is found to yield better image quality than YCbCr-FC2VQ at similar bitrate. With the RGB-FC2VQ algorithm, an 128×128 24-bit color ID image (49,152 bytes) can be compressed down to 500 bytes with satisfactory quality.
Original language | English (US) |
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Title of host publication | Proceedings - IEEE International Symposium on Circuits and Systems |
Editors | Anon |
Publisher | IEEE |
Pages | 1249-1252 |
Number of pages | 4 |
Volume | 2 |
State | Published - 1997 |
Event | Proceedings of the 1997 IEEE International Symposium on Circuits and Systems, ISCAS'97. Part 4 (of 4) - Hong Kong, Hong Kong Duration: Jun 9 1997 → Jun 12 1997 |
Other
Other | Proceedings of the 1997 IEEE International Symposium on Circuits and Systems, ISCAS'97. Part 4 (of 4) |
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City | Hong Kong, Hong Kong |
Period | 6/9/97 → 6/12/97 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials