opencv如何剪辑视频?
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使用OpenCV剪辑视频的基本步骤如下:
1. 导入库import cv22. 打开视频文件
video_path = 'input_video.mp4' cap = cv2.VideoCapture(video_path)3. 获取视频属性
fps = int(cap.get(cv2.CAP_PROP_FPS)) width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH)) height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))4. 创建VideoWriter对象
output_path = 'output_video.mp4' fourcc = cv2.VideoWriter_fourcc(*'mp4v') out = cv2.VideoWriter(output_path, fourcc, fps, (width, height))5. 设置剪辑的起始和结束时间
start_time = 10 # 起始时间(秒) end_time = 20 # 结束时间(秒) start_frame = int(start_time * fps) end_frame = int(end_time * fps)6. 读取并写入指定帧
frame_count = 0 while cap.isOpened(): ret, f...
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