【工程代码记录】视频帧转视频

根据视频帧导出mp4视频，其中img_root为视频帧文件夹路径。

代码如下（示例）：

#!/usr/bin/env python
import cv2
import os

img_root = 'VisDrone2019-MOT-val/sequences/uav0000086_00000_v/' # 视频帧文件夹路径，注意最后一个文件夹要有斜杠
fps = 20  # 保存视频的FPS，可以适当调整

img = cv2.imread('VisDrone2019-MOT-val/sequences/uav0000086_00000_v/0000001.jpg') # 图片样本
imginfo = img.shape
size = (imginfo[1],imginfo[0])
print(size)
fourcc = cv2.VideoWriter_fourcc(*"mp4v")
videoWriter = cv2.VideoWriter('sample.mp4',fourcc,fps,size,True)

indexes_image = os.listdir(img_root)
for index in indexes_image:
    frame = cv2.imread(img_root + str(index))
    videoWriter.write(frame)
videoWriter.release()