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Estimation of Gamut Boundary based on Modified Segment Maxima to Reduce Color Artifacts  

Ha, Ho-Gun (School of Electronics Engineering, Kyungpook National University)
Jang, In-Su (School of Electronics Engineering, Kyungpook National University)
Lee, Tae-Hyoung (School of Electronics Engineering, Kyungpook National University)
Ha, Yeong-Ho (School of Electronics Engineering, Kyungpook National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.48, no.3, 2011 , pp. 99-105 More about this Journal
Abstract
In this paper, we proposed a method for estimating an accurate gamut based on segment maxima method. According to the number of segments in the segment maxima, a local concavity is generated in the vicinity of lightness axis or a gamut is reduced in high chroma region. It induces artifacts or deterioration of the image quality. To remove these artifacts, the number of segment is determined according to the number of samples. and a local concavity is modified by extending a detected concave point to the line connecting two adjacent boundary points. Experimental results show that the contours in a uniform color region and speckle artifacts from the conventional segment maxima algorithm are removed.
Keywords
segment maxima;
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  • Reference
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