Python将视频或者动态图gif逐帧保存为图片的方法

|――datasets  |――action1   action1_1.gif   action1_2.gif   ......  |――action2   action2_1.gif   action2_2.gif   ......import cv2import osfrom PIL import Imagevideo_path = 'PATH_ROOT/datasets/' #视频或gif图像的路径save_path = 'PATH_ROOT/save/' #保存帧的路径action_list = os.listdir(video_path)for action in action_list: if not os.path.exists(save_path+action):  os.mkdir(save_path+action) video_list = os.listdir(video_path+action) for video in video_list:  prefix = video.split('.')[0]  if not os.path.exists(save_path+action+'/'+prefix):   os.mkdir(save_path+action+'/'+prefix)  save_name = save_path + action + '/' + prefix + '/'  video_name = video_path+action+'/'+video  name = video_name.split('.')[1]  if name == "avi":   cap = cv2.VideoCapture(video_name)   fps = int(cap.get(cv2.CAP_PROP_FRAME_COUNT))   fps_count = 0   for i in range(fps):    ret, frame = cap.read()    if ret:     cv2.imwrite(save_name + str(10000 + fps_count) + '.jpg', frame)     fps_count += 1  if name == "gif":   im = Image.open(video_name)   #当打开一个序列文件时，PIL库自动加载第一帧。   #可以使用seek()函数和tell()函数在不同帧之间移动。实现保存   try:    while True:     current = im.tell()     #为了保存为jpg格式，需要转化。否则可以保存为png     img = im.convert('RGB')      img.save(save_name+'/'+str(10000+current)+'.jpg')     im.seek(current + 1)   except EOFError:    pass

from PIL import Imageimport osgifFileName = 'test.gif'#使用Image模块的open()方法打开gif动态图像时，默认是第一帧im = Image.open(gifFileName)pngDir = gifFileName[:-4]#创建存放每帧图片的文件夹os.mkdir(pngDir)try: while True:  #保存当前帧图片  current = im.tell()  im.save(pngDir+'/'+str(current)+'.png')  #获取下一帧图片  im.seek(current+1)except EOFError:  pass