好帅好帅的人: 安装tensorflow的时候， Anaconda Prompt在哪里打开

RadarResearcher: 博主你好，请问如何保存拟合的函数呢

weixin_45079682: 请问该算法适用于GPU吗？

正一番薯: Optional output vector (e.g. std::vector), containing information about the image topology. It has as many elements as the number of contours. For each i-th contour contours[i], the elements hierarchy[i][0] , hierarchy[i][1] , hierarchy[i][2] , and hierarchy[i][3] are set to 0-based indices in contours of the next and previous contours at the same hierarchical level, the first child contour and the parent contour, respectively. If for the contour i there are no next, previous, parent, or nested contours, the corresponding elements of hierarchy[i] will be negative. https://docs.opencv.org/3.4/d3/dc0/group__imgproc__shape.html#ga17ed9f5d79ae97bd4c7cf18403e1689a opencv 3.4文档说hierarchy[2],hierarchy[3]分别是子轮廓、父轮廓的索引，与博主描述的有出入，请确认一下哈

vivian3an: 如果被查找的数据源第一列是空的，会出现匹配到 NA 的情况，可以删除第一列数据试试。