Chromaticity-based separation of reflection components in a single image

  • Authors:
  • Hui-Liang Shen;Hong-Gang Zhang;Si-Jie Shao;John H. Xin

  • Affiliations:
  • Department of Information and Electronic Engineering, Zhejiang University, Hangzhou 310027, China;Department of Information and Electronic Engineering, Zhejiang University, Hangzhou 310027, China;Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong, China;Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong, China

  • Venue:
  • Pattern Recognition
  • Year:
  • 2008

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Abstract

The separation of diffuse and specular reflection components, or equivalently specularity removal, is required in the fields of computer vision, object recognition and image synthesis. This paper proposes a simple and effective method to separate reflections in a color image based on the error analysis of chromaticity and appropriate selection of body color for each pixel. By solving the least-squares problem of the dichromatic reflection model, reflection separation is implemented on a single pixel level, without requiring image segmentation and even local interactions between neighboring pixels. Experimental evaluation indicates that the proposed method is effective and can deal with a wide variety of images.