如下所示:
# coding=utf-8 import osimport cv2 videos_src_path = "/home/wgp/視頻/"video_formats = [".MP4", ".MOV"]frames_save_path = "/home/wgp/視頻/"width = 320height = 240time_interval = 50 def video2frame(video_src_path, formats, frame_save_path, frame_width, frame_height, interval): """ 將視頻按固定間隔讀取寫入圖片 :param video_src_path: 視頻存放路徑 :param formats: 包含的所有視頻格式 :param frame_save_path: 保存路徑 :param frame_width: 保存幀寬 :param frame_height: 保存幀高 :param interval: 保存幀間隔 :return: 幀圖片 """ videos = os.listdir(video_src_path) def filter_format(x, all_formats): if x[-4:] in all_formats: return True else: return False videos = filter(lambda x: filter_format(x, formats), videos) for each_video in videos: print "正在讀取視頻:", each_video each_video_name = each_video[:-4] os.mkdir(frame_save_path + each_video_name) each_video_save_full_path = os.path.join(frame_save_path, each_video_name) + "/" each_video_full_path = os.path.join(video_src_path, each_video) cap = cv2.VideoCapture(each_video_full_path) frame_index = 0 frame_count = 0 if cap.isOpened(): success = True else: success = False print("讀取失敗!") while(success): success, frame = cap.read() print "---> 正在讀取第%d幀:" % frame_index, success if frame_index % interval == 0: resize_frame = cv2.resize(frame, (frame_width, frame_height), interpolation=cv2.INTER_AREA) # cv2.imwrite(each_video_save_full_path + each_video_name + "_%d.jpg" % frame_index, resize_frame) cv2.imwrite(each_video_save_full_path + "%d.jpg" % frame_count, resize_frame) frame_count += 1 frame_index += 1 cap.release() if __name__ == '__main__': video2frame(videos_src_path, video_formats, frames_save_path, width, height, time_interval)以上這篇Python OpenCV對本地視頻文件進行分幀保存的實例就是小編分享給大家的全部內容了,希望能給大家一個參考,也希望大家多多支持武林站長站。
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