Compression of images in CFA format

Date

2006

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Source Title

Proceedings of the International Conference on Image Processing, IEEE 2006

Print ISSN

1522-4880

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IEEE

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Pages

1141 - 1144

Language

English

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Abstract

In this paper, images in Color Filter Array (CFA) format are compressed without converting them to full-RGB color images. Green pixels are extracted from the CFA image data and placed in a rectangular array, and compressed using a transform based method without estimating the corresponding luminance values. In addition, two sets of color difference (or chrominance) coefficients are obtained corresponding to the red and blue pixels of the CFA data and they are also compressed using a transform based method. The proposed method produces better PSNR values compared to the standard approach of bilinear interpolation followed by compression.

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