std::vector<:vector> > contours; std::vector<:vec4i> hierarchy; // for opencv 2 // cv::findContours(srcImage, contours, hierarchy, CV_RETR_CCOMP, CV_CHAIN_APPROX_SIMPLE); // for opencv 3 cv::findContours(srcImage, contours, hierarchy, cv::RETR_CCOMP, cv::CHAIN_APPROX_SIMPLE); ...
使用Python和OpenCV来对四个顶点坐标顺时针排序 order_coordernates.py的完整代码如下: # USAGE# python order_coordinates.py# import the necessary packagesfrom__future__importprint_functionfromimutilsimportperspectivefromimutilsimportcontoursimportnumpyasnpimportargparseimportimutilsimportcv2deforder_points_new(pts...
最后我们用cv2.findContours函数来提取对象的轮廓: # find contours in the edge map cnts = cv2.findContours(edged.copy(), cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE) cnts = imutils.grab_contours(cnts) # sort the contours from left-to-right and initialize the bounding box # point colors (cnts,...
Cloud Studio代码运行 cnts=cv2.findContours(edged.copy(),cv2.RETR_EXTERNAL,cv2.CHAIN_APPROX_SIMPLE)cnts=imutils.grab_contours(cnts)# sort the contours from left-to-right and initialize the bounding box # pointcolors(cnts,_)=contours.sort_contours...
在原来的https://www.pyimagesearch.com/2014/08/25/4-point-opencv-getperspective-transform-example/博客文章中有详细介绍order_points方法。 原始排序算法: # import the necessary packagesfrom __future__ import print_functionfrom imutils import perspectivefrom imutils import contoursimport numpy as npimport...