多边形角点坐标提取

已知图像上有一多边形区域，怎样提取这一多边形的角点坐标？例如附件中这样的多边形。

搜索更多相关主题的帖子: 多边形 坐标

你试一下im2bw，bwlabel和regionprops,其中
STATS = regionprops(L, 'Extrema' )好像可以

我用这个函数regionprops(L, 'Extrema' )只能提取出图形的最左，最右，最上，最下几个角点。而凹进去的那两个点无法提取出来。
   我就是想知道凹进去的那两个点怎么提取出来？？

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>> imshow(x)
>> y=diff(x,2,1);
>> imshow(y)
>> z=diff(y,2,2);
>> imshow(z)
>>

什么意思啊？不明白。

你给我邮箱吧，我这有一个matlab图像处理的资料，给你寄去。

本帖最近评分记录

• liushikuan 积分+2 2008-10-17 14:59

好的。我的邮箱是：liushikuan2008@yahoo.cn。多谢了。我给你加分。再次感谢。