使用OPENCV 截取摄像头图片，录制视频（附详细注释）

原创

已于 2024-03-28 09:16:13 修改 · 597 阅读

1 ·

CC 4.0 BY-SA版权

文章标签：

#opencv #音视频 #python

于 2024-03-27 18:07:30 首次发布

基础类：CaptureManager

摄像头操作，获取图像，以及处理

import cv2
import numpy
import time

class CaptureManager (object):
    def __init__(self, capture, previewWindowManager = None,shouldMirrorPreview = False):
        self.previewWindowManager = previewWindowManager
        self.shouldMirrorPreview = shouldMirrorPreview
        self._capture = capture
        self._channel = 0
        self._enteredFrame = False
        self._frame = None
        self._imageFilename = None
        self._videoFilename = None
        self._videoEncoding = None
        self._videoWriter = None
        self._startTime = None
        self._framesElapsed = 0
        self._fpsEstimate = None

    #定义属性访问器
    @property
    def channel(self):
        return self._channel

    @channel.setter
    def channel(self, value):
        if self._channel != value:
            self._channel = value
            self._frame = None

    @property
    def frame(self):
        tr