以CE-shape数据库为例来计算弦长关联算法相似性测度。-With CE-shape database as an example to calculate the chord length correlation algorithm similarity measure.

Hist13.m获得的图像区域弦长关联特征，该算法原理可通过搜索chord context关键词获得。-Hist13.m acquired image region associated with chord length feature of the algorithm, this paper can be obtained by searching for keywords chord context.

采用的是基于弦中点的hough变换椭圆检测算法，大家可以在百度上搜这篇论文，由于不是用的标准hough变换的算法，所以运行速度还不错-Used is based on the midpoint of the chord hough transform ellipse detection algorithm, we can search on Baidu paper, because the algorithm is not used in standard hough transform, so