opencv之 读取视频的帧数变成图片
from cv2 import cv2
video = cv2.VideoCapture("./video/test.mp4") # 获取一个视频来打开
isOpened = video.isOpened # 判断这个视频是否可以正常打开
print(isOpened)
fps = video.get(cv2.CAP_PROP_FPS) # 读取这个视频的帧率
width = int(video.get(cv2.CAP_PROP_FRAME_WIDTH)) # 获取视频的宽度
height = int(video.get(cv2.CAP_PROP_FRAME_HEIGHT)) # 获取视频的高度
print(fps, width, height) # 查看帧率 宽高
i = 0
while isOpened:
if i == 10:
break
else:
i += 1
(flag, frame) = video.read() # 读取每一张图片 flag 表明是否都区成功， frame表示图片的内容
fileName = "image" + str(i) + ".jpg"
print(fileName)
if flag == True:
print("./pic/"+fileName)
cv2.imwrite("./pic/"+fileName, frame, [cv2.IMWRITE_JPEG_QUALITY, 100])
print("end!")
作者：锋霜利雪
