报错:cv2.error: OpenCV(3.4.8) C:\projects\opencv-python\opencv_contrib\modules\xfeatures2d\src\sift.cp
1,在跑OpenCV的sift关键点检测时遇到这个问题importcv2ascvimportmatplotlib.pyplotaspltimportnumpyasnpfrompylabimportmplmpl.rcParams['font.sans-serif']=['SimHei']#读取图像img=cv.imread('aa.jpg')gray=cv.cvtColor(img,cv.COLOR