关键词: 图像形态学, 加权距离序, 词典序, 彩色形态学算子

Abstract: The definition of color morphological operators was proposed in this paper, which was based on the combination of weighted distance ordering of the reference color and improved lexicographical ordering. In the proposed approach which based on L*a*b* color model and its polar coordinates representation, vectors ordering which was mapped to scalar function with weighted impact factors were compared. A generalization of λ-modulus lexicographical ordering with the lexicographical ordering was proposed to solve the lack of equidistant, which could adjust arbitrarily quantitative function and reduce contributions of the preceding components in ordering. Compared with traditional distant and lexicographical ordering method in color image processing, favorable consistency in terms of human perception was obtained, better image color balance was maintained, and richer details of image edge and smoother processing performance were shown in the experiments results.

Key words: image morphology, weighted distance ordering, lexicographical ordering, color morphological operator