matlab movie2avi(movobj_I, filename, 'compression', 'None')改写成python

的代码应该怎么写？

在Python中，可以使用moviepy库中的write_videofile()函数将视频文件保存为AVI格式。下面是写入未压缩AVI文件的示例代码：

from moviepy.editor import *

clip = VideoFileClip(movobj_I)
clip.write_videofile(filename, codec='rawvideo', fps=fps)

请注意，在此示例中，movobj_I参数应为视频文件的路径。

相关问题

matlab movie2avi(movobj_I, filename, 'compression', 'None');改写成python

中的语句是什么？

在Python中，可以使用OpenCV库来创建视频。下面是使用OpenCV库将视频轨迹数组（或numpy数组）保存为AVI文件的代码示例：

import cv2
import numpy as np
from numpy import ndarray

def save_to_video(tracks: ndarray, filename: str):
"""
Save the tracks as a video.

:param tracks: A numpy ndarray with shape (frames, tracks, 2).
:param filename: The name/path of the output video file.
"""
h, w, _ = tracks[0].shape
fourcc = cv2.VideoWriter_fourcc(*'XVID')
out = cv2.VideoWriter(filename, fourcc, 20.0, (w, h))

for i in range(len(tracks)):
frame_tracks = tracks[i]
frame = np.zeros((h, w, 3), dtype=np.uint8)

for j in range(len(frame_tracks)):
pt1 = tuple(frame_tracks[j, 0])
pt2 = tuple(frame_tracks[j, 1])
cv2.line(frame, pt1, pt2, (255, 0, 0), 2)

out.write(frame)

out.release()

调用该函数与传递待保存的数组和要保存的文件名。例如：

save_to_video(movobj_I, 'output.avi')

matlab movie2avi(movobj_I, filename, 'compression', 'None');改写成pytho

n该怎么写？

在 Python 中，可以使用 OpenCV 库作为替代来处理视频。以下是一个可能的示例代码：

import cv2

# 读取MOV文件
video = cv2.VideoCapture('my_video.mov')

# 获取视频参数
fps = int(video.get(cv2.CAP_PROP_FPS))
width = int(video.get(cv2.CAP_PROP_FRAME_WIDTH))
height = int(video.get(cv2.CAP_PROP_FRAME_HEIGHT))

# 定义输出的视频格式和名称
fourcc = cv2.VideoWriter_fourcc(*'MJPG')
output_video = cv2.VideoWriter('output_video.avi', fourcc, fps, (width, height), True)

# 循环读取每一帧并写入输出视频
while True:
ret, frame = video.read()
if not ret:
break
output_video.write(frame)

# 释放所有资源
video.release()
output_video.release()
cv2.destroyAllWindows()