Opencv实现Mat转Gif

发现了神奇的python视频处理库：moviepy

发现了神奇的Gif生成代码：

import os
import cv2 as cv
import moviepy.editor as mpy
import numpy as np

def make_gif(images, fname, duration=2, true_image=True):

  def make_frame(t):
    try:
      x = images[int(len(images)/duration*t)]
    except:
      x = images[-1]

    if true_image:
      return x.astype(np.uint8)
    else:
      return ((x+1)/2*255).astype(np.uint8)

  clip = mpy.VideoClip(make_frame, duration=duration)
  clip.write_gif(fname, fps = len(images) / duration)
  #fps帧率自己调

dir_list = os.listdir('E:\\[4]datasets\\FaceDatasets\\YTF\\YTF_FaceDetect\\Alison_Lohman\\5')

img_list=[]
for i in range(0,len(dir_list)):
    img = cv.imread('E:\\[4]datasets\\FaceDatasets\\YTF\\YTF_FaceDetect\\Alison_Lohman\\5\\' + dir_list[i])
    img = cv.cvtColor(img, cv.COLOR_BGR2RGB)
    img_list.append(img)
make_gif(img_list, 'test.gif', duration = 4)

输入

输出