python视频画面分割
时间: 2023-10-19 22:22:51 浏览: 172
视频画面分割可以使用OpenCV库来实现,具体步骤如下:
1.导入OpenCV库和numpy库
```python
import cv2
import numpy as np
```
2.读取视频
```python
#读取视频文件
video = cv2.VideoCapture('video.mp4')
```
3.获取视频帧数和帧率
```python
#获取视频帧数
frame_count = int(video.get(cv2.CAP_PROP_FRAME_COUNT))
#获取视频帧率
fps = int(video.get(cv2.CAP_PROP_FPS))
```
4.循环遍历每一帧,将视频画面分割
```python
while True:
#读取一帧
ret, frame = video.read()
if ret:
#获取视频帧的宽度和高度
height, width, _ = frame.shape
#将视频画面分割成两个部分
left_part = frame[:, 0:width//2, :]
right_part = frame[:, width//2:width, :]
#显示分割后的画面
cv2.imshow('Left Part', left_part)
cv2.imshow('Right Part', right_part)
#按下q键退出
if cv2.waitKey(1) & 0xFF == ord('q'):
break
else:
break
```
5.释放视频对象和窗口
```python
#释放视频对象和窗口
video.release()
cv2.destroyAllWindows()
```
完整代码示例:
```python
import cv2
import numpy as np
#读取视频文件
video = cv2.VideoCapture('video.mp4')
#获取视频帧数
frame_count = int(video.get(cv2.CAP_PROP_FRAME_COUNT))
#获取视频帧率
fps = int(video.get(cv2.CAP_PROP_FPS))
while True:
#读取一帧
ret, frame = video.read()
if ret:
#获取视频帧的宽度和高度
height, width, _ = frame.shape
#将视频画面分割成两个部分
left_part = frame[:, 0:width//2, :]
right_part = frame[:, width//2:width, :]
#显示分割后的画面
cv2.imshow('Left Part', left_part)
cv2.imshow('Right Part', right_part)
#按下q键退出
if cv2.waitKey(1) & 0xFF == ord('q'):
break
else:
break
#释放视频对象和窗口
video.release()
cv2.destroyAllWindows()
```
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