Opencvビデオ分解とビデオ合成

ビデオの内訳

import cv2
cap = cv2.VideoCapture("E:/code/conputer_visual/data/1.mp4") #获取一个视频句柄
isOpened = cap.isOpened()  #判断当前句柄是否可以打开
fps = cap.get(cv2.CAP_PROP_FPS)  #获取帧率
width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH)) #获取图像宽度
height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT)) #获取图像高度
print(fps, width, height)
i = 0
while (isOpened):
    if i == 10:
        break
    else:
        i += 1
    (flag, frame) = cap.read() #读取每一帧图像
    fileName = "E:/code/conputer_visual/data/lion_imgs/" + "image" + str(i) + ".jpg"
    print(fileName)
    if flag == True:
        cv2.imwrite(fileName, frame, [cv2.IMWRITE_JPEG_QUALITY, 100])
print("end!")

ビデオ合成

import cv2
img = cv2.imread("E:/code/conputer_visual/data/lion_imgs/image1.jpg", 1)
imgInfo = img.shape
size = (imgInfo[1], imgInfo[0])
print(size)
#1文件名 2编码器 3帧率 4size 
videoWrite = cv2.VideoWriter("E:/code/conputer_visual/data/2.mp4", -1, 5, size) #写入对象
for i in range(1,11):
    fileName = "E:/code/conputer_visual/data/lion_imgs/" + "image" + str(i) + ".jpg"
    img = cv2.imread(fileName)
    videoWrite.write(img) #写入方法
print("end!")