DocumentCode :
3469228
Title :
Separating Specular and Diffuse Reflection Components in the HSI Color Space
Author :
Jianwei Yang ; Lixing Liu ; Li, Stan Z.
Author_Institution :
Inst. of Autom., CBSR & NLPR, China
fYear :
2013
fDate :
2-8 Dec. 2013
Firstpage :
891
Lastpage :
898
Abstract :
In this paper, we propose to separate diffuse and specular reflection components for color images in the HSI color space. Under white illumination, pixels with the same diffuse chromaticity have the same hue. Meanwhile, specular pixels have lower saturations than the diffuse ones. Based on these properties, separating reflection components can be achieved by adjusting saturations of specular pixels to the values of diffuse-only pixels with the same diffuse chromaticity. We employ a region-growing algorithm to locate adjacent pixels with similar diffuse chromaticities. Then, the separation of reflection components is achieved byfinding the optimal saturation in each connected region. The experimental results demonstrate that the proposed method is more effective to separate reflection components than the state-of-the-art methods.
Keywords :
image colour analysis; image segmentation; optical saturation; reflection; HSI color space; color images; diffuse chromaticity; diffuse reflection components; diffuse-only pixels; hue; region-growing algorithm; saturation; specular pixels; specular reflection components; white illumination; Color; Fuses; Image color analysis; Image segmentation; Integrated circuits; Interference; Lighting;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer Vision Workshops (ICCVW), 2013 IEEE International Conference on
Conference_Location :
Sydney, NSW
Type :
conf
DOI :
10.1109/ICCVW.2013.122
Filename :
6755991
Link To Document :
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