A new pyramid structure for progressive transmission of palettized color images


The Transactions of the Korea Information Processing Society (1994 ~ 2000), Vol. 3, No. 6, pp. 1624-1635, Nov. 1996
10.3745/KIPSTE.1996.3.6.1624,   PDF Download:

Abstract

Palettized color images are the dominant type of the image used in Internet and World-Wide Web. In spite of this, most image compression and progressive transmission algorithm have been designed of continuous-tone images in such a aspect that pixel values are lookup table indices instead of physical intensity values. Hence palettized images have lower spatial correlation. In this papre, we propose a new pyramid structure for compression and progressive transmission of a palettized image. In the proposed pyramid structure, the color of a node at higher level is the one that occupies the most part in 4 sons and each node is represented by a type code and several color codes. Since the proposed method do not exploit spatial correlation in an image, it is ideally applied to lossless compression and progressive transmission of palettized images. We have confirmed this through the experimental results.


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Cite this article
[IEEE Style]
C. Y. Woo and K. Y. Mo, "A new pyramid structure for progressive transmission of palettized color images," The Transactions of the Korea Information Processing Society (1994 ~ 2000), vol. 3, no. 6, pp. 1624-1635, 1996. DOI: 10.3745/KIPSTE.1996.3.6.1624.

[ACM Style]
Cho Young Woo and Kim Young Mo. 1996. A new pyramid structure for progressive transmission of palettized color images. The Transactions of the Korea Information Processing Society (1994 ~ 2000), 3, 6, (1996), 1624-1635. DOI: 10.3745/KIPSTE.1996.3.6.1624.