关键词: 彩色图像分割, 颜色聚类, 区域生长, 子块

Abstract: A color image segmentation algorithm based on sub-block region growing techniques is presented.The original image is first partitioned into sub-blocks which are not overlapped.Applying color and texture feature of one sub-block，a color clustering algorithm based on perceptual uniformity within the sub-block is performed to classify these sub-blocks，and a block growing algorithm is employed to achieve segmentation for the whole image based on growing rules.The experimental segmentation results hold favorable consistency in terms of human perception，and confirm effectiveness of the algorithm.

Key words: color image segmentation, color clustering, region growing, blocks