opencv vs2019 videoCapture set分辨率1600*1200
设置为1600-1200,读取时变成了1280-960,在linux上是正常的,到了win10不知怎得就设置不了了。
解决方法:
cv::VideoCapture.open(index, cv:CAP_DSHOW);
会出现的问题
设置了CAP_DSHOW
之后,图像接受速度变慢了,
解决方法
cout << m_capture.set(cv::CAP_PROP_FRAME_WIDTH, IMAGE_WIDTH) << endl;
cout << m_capture.set(cv::CAP_PROP_FRAME_HEIGHT, IMAGE_HEIGHT) << endl;
cout << m_capture.set(cv::CAP_PROP_FPS, 60) <<endl;
//设置JPEG放在改变分辨率之后再设置
cout << "fourcc:" << m_capture.set(cv::CAP_PROP_FOURCC,cv::VideoWriter::fourcc('M', 'J', 'P', 'G')) << endl;
参考
https://answers.opencv.org/question/195388/video-capture-resolution-issue-on-windows/