程序是BSR的P. Arbelaez, M. Maire, C. Fowlkes and J. Malik.的论文Contour Detection and Hierarchical Image Segmentation的MATLAB源码，包含bsds500的测试。
轮廓检测方面使用了多种局部和全局线索的组合，得到基于谱聚类的全局化框架。采用分层图像分割，通过OWT-UCM方法将所有检测到的轮廓变换为分层区域树结构。
感谢作者提供的代码分享。
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