giaming的博客日志

将视频保存为图像 import cv2 import glob import os from datetime import datetime def video_to_frames(path): videoCapture = cv2.VideoCapture() videoCapture.open(path) # 帧率 fps = videoCapture.get(cv2.CAP_PROP_FPS) # 总帧数 frames = videoCapture

程序如下： import cv2 import numpy as np # 按位运算 # Load two images img1 = cv2.imread('../data/messi5.jpg') img2 = cv2.imread('../data/opencv_logo.png') # I want to put logo on top-left corner, So I create a ROI rows, cols, channels = img2.shape roi = img1[0:r

解决： 这种问题一般是因为图片/视频的路径有问题，路径做好不能有中文，注意不同系统之间路径可能表示不一样，可以在路径字符串前面加一个字符r

参考的OpenCV-Python-Toturial-中文版.pdf的代码： import numpy as np import cv2 cap = cv2.VideoCapture(0) # 默认内置摄像头 while(True): # Capture frame-by-frame ret, frame = cap.read() # Our operations on ...