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| 一种融合颜色和空间信息的彩色图像分割算法 |
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叶齐祥1, 高文1,2, 王伟强1,2, 黄铁军1,2
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1.中国科学院,计算技术研究所,数字化实验室,北京,100080;2.中国科学院,研究生院,网络多媒体研究中心,北京,100039
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| 摘要: |
| 提出了一种基于图像颜色和空间信息的彩色图像分割算法.该算法首先根据所提出的颜色粗糙度概念对图像进行颜色量化,并在此基础上使用增量式的区域生长算法发现颜色相近的像素之间的空间连通性,形成图像的初始分割区域.然后,根据融合了颜色和空间信息的区域距离,对初始分割区域进行分级合并,直到系统满足了所提出的停止区域合并的准则.最后,利用形态学的有关算法对分割区域的边缘进行平滑.实验证明,算法的分割结果与人的主观视觉感知具有良好的一致性. |
| 关键词: 图像分割 颜色粗糙度 颜色量化 区域生长 区域合并 边缘 邻接 |
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| 基金项目:Supported by the National High-Tech Research and Development Plan of China under Grant Nos.2001AA142140, 2003AA142140 (国家高技术研究发展计划(863) |
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| A Color Image Segmentation Algorithm by Using Color and Spatial Information |
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YE Qi-Xiang,GAO Wen,WANG Wei-Qiang,HUANG Tie-Jun
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| Abstract: |
| An algorithm for color image segmentation, based on color and spatial information is proposed in this paper. First, color quantization is performed on an image based on the proposed color coarseness metric, and then an incremental region growing method is exploited to find the spatial connectivity of pixels with similar colors to form the initial segmented regions. Second, the initial regions are hierarchically merged based on the region distance defined by the color and spatial information. A criteria is proposed to decide the termination of the merging process. Finally, the erosion and dilation operators are used to smooth the edges of the segmented regions. The experimental results demonstrate that the color image segmentation results of the proposed approach hold favorable consistency in terms of human perception. |
| Key words: image segmentation color coarseness color quantization region growing region merging edge adjacency |
