新型彩色图像形态学处理方法

New method of morphological color image processing

提出了一种基于参考色彩的加权距离序与改进词典序相结合的彩色形态学算子定义方法,该方法利用L*a*b*色彩模型与其极坐标表示形式,采用权值影响因子,将矢量映射为标量函数进行初始比较;同时结合词典序来解决距离相等的不足,提出一种基于λ模数的一般词典序方法,能任意调整量化函数,降低排列在先的分量作用,将其应用到彩色图像处理中。与传统距离和词典序的彩色形态相比,该方法既能得到与视觉判断相一致的分析结果,更能保持图像色彩平衡的能力,特别是在纹理边界区域,图像边缘细节更为丰富,可以得到更平滑的处理效果。

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.