Transform coding of color images with limited palette size

An approach for the compression of color images with limited palette size that does not require color quantization of the decoded image is presented. The technique restricts the pixels of the decoded image to take values only in the original palette. Thus, the decoded image can be readily displayed...

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Bibliographic Details
Published in:[Proceedings] ICASSP 91: 1991 International Conference on Acoustics, Speech, and Signal Processing pp. 2625 - 2628 vol.4
Main Authors: Zaccarin, A., Liu, B.
Format: Conference Proceeding
Language:English
Published: IEEE 1991
Subjects:
Bit rate
Color
Computational complexity
Decoding
Discrete cosine transforms
Displays
Image coding
Pixel
Quantization
Transform coding
ISBN:9780780300033, 0780300033
ISSN:1520-6149
Online Access:Get full text
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Summary:An approach for the compression of color images with limited palette size that does not require color quantization of the decoded image is presented. The technique restricts the pixels of the decoded image to take values only in the original palette. Thus, the decoded image can be readily displayed without having to be quantized. Results obtained with a typical image are included to compare a conventional coding scheme to the proposed one. For comparable quality and bit rates, the proposed technique significantly reduces the decoder computational complexity.< >
ISBN:9780780300033
0780300033
ISSN:1520-6149
DOI:10.1109/ICASSP.1991.150940