Content-adaptive color transform for image compression

Alexander Suhre; Kivanc Kose; Ahmet E. Cetin; Metin N. Gurcan

doi:10.1117/1.3574071

1 May 2011 Content-adaptive color transform for image compression

Alexander Suhre, Kivanc Kose, Ahmet E. Cetin, Metin N. Gurcan

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Optical Engineering, Vol. 50, Issue 5, 057003 (May 2011). https://doi.org/10.1117/1.3574071

Abstract

In this paper, an adaptive color transform for image compression is introduced. In each block of the image, coefficients of the color transform are determined from the previously compressed neighboring blocks using weighted sums of the RGB pixel values, making the transform block-specific. There is no need to transmit or store the transform coefficients because they are estimated from previous blocks. The compression efficiency of the transform is demonstrated using the JPEG image coding scheme. In general, the suggested transformation results in better peak signal-to-noise ratio (PSNR) values for a given compression level.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Alexander Suhre, Kivanc Kose, Ahmet E. Cetin, and Metin N. Gurcan "Content-adaptive color transform for image compression," Optical Engineering 50(5), 057003 (1 May 2011). https://doi.org/10.1117/1.3574071

Published: 1 May 2011

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