한국방송∙미디어공학회:학술대회논문집 (Proceedings of the Korean Society of Broadcast Engineers Conference)
- 한국방송공학회 2009년도 IWAIT
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- Pages.80-84
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- 2009
ANALYSIS OF RELATIONSHIP BETWEEN IMAGE COMPRESSION AND GAMUT VARIATION
- Park, Tae-Yong (School of Electrical Engineering and Computer Science Kyungpook National University) ;
- Ko, Kyung-Woo (School of Electrical Engineering and Computer Science Kyungpook National University) ;
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Ha, Yeong-Ho
(School of Electrical Engineering and Computer Science Kyungpook National University)
- 발행 : 2009.01.12
초록
This paper investigates the relationship between the compression ratio and the gamut area for a reconstructed image when using JPEG and JPEG2000. Eighteen color samples from the Macbeth ColorChecker are initially used to analyze the relationship between the compression ratio and the color bleeding phenomenon, i.e. the hue and chroma shifts in the a*b* color plane. In addition, twelve natural color images, divided into two groups depending on four color attributes, are also used to investigate the relationship between the compression ratio and the variation in the gamut area. For each image group, the gamut area for the reconstructed image shows an overall tendency to increase when increasing the compression ratio, similar to the experimental results with the Macbeth ColorChecker samples. However, with a high compression ratio, the gamut area decreases due to the mixture of adjacent colors, resulting in more grey.