""has improper permissions, or is an ""unsupported or invalid format"% img)elifisinstance(img, numpy.ndarray):# don't try to convert an already-gray image to grayifgrayscaleandlen(img.shape) ==3:# and img.shape[2] == 3:img_cv = cv2.cvtColor(img, cv2...
例如,将彩色图像转换为灰度图像,然后应用高斯模糊: import cv2 # 读取图像 image = cv2.imread('example.jpg') # 将图像转换为灰度图像 gray_image = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY) # 应用高斯模糊 blurred_image = cv2.GaussianBlur(gray_image, (5, 5), 0) # 显示原图和处理后的图像 cv2....
importcv2 cap=cv2.VideoCapture(0)while(True):# capture frame-by-frameret,frame=cap.read()#转换为灰度图gray=cv2.cvtColor(frame,cv2.COLOR_BGR2GRAY)# rgb = frame[...,::-1] # 转换为RGB# display the resulting framecv2.imshow('frame',gray)ifcv2.waitKey(1)&0xFF==ord('q'):#按q键...