[英]how to use the raspberry pi camera as video input in c++ openCV?
This is how I usually process video's in openCV. 这就是我通常在openCV中处理视频的方式。
#include <iostream>
#include<opencv2/opencv.hpp>
int main(int argc, char** argv)
{
Mat output;
VideoCapture cap(CV_CAP_ANY);
if( !cap.isOpened() )
{
cout << "Could not initialize capturing...\n";
return 0;
}
while(1){
cap >> output;
imshow("webcam input", output);
char c = (char)waitKey(10);
if( c == 27 ) break;
}
}
Now I have a raspberry pi camera and I have the following minimal: 现在我有一个覆盆子pi相机,我有以下最小:
#include <iostream>
#include<opencv2/opencv.hpp>
#include <raspicam/raspicam_cv.h>
int main(int argc, char** argv)
{
Mat image, output;
//VideoCapture cap(CV_CAP_ANY);
raspicam::RaspiCam_Cv cap;
if( !cap.isOpened() )
{
cout << "Could not initialize capturing...\n";
return 0;
}
while(1){
cap >> output;
imshow("webcam input", output);
char c = (char)waitKey(10);
if( c == 27 ) break;
}
}
However the latter doesn't work, this is what is output to the terminal when I compile it: http://paste.ubuntu.com/24324541/ 然而后者不起作用,这是我编译时输出到终端的内容: http : //paste.ubuntu.com/24324541/
Could someone tell me what the correct way to do this is? 有人能告诉我这样做的正确方法是什么?
Thank you 谢谢
According to the documentation , you cannot use it as a stream, but instead must do this: 根据文档 ,您不能将它用作流,但必须这样做:
while(1){
cap.grab();
cap.retrieve(output);
imshow("webcam input", output);
char c = (char)waitKey(10);
if( c == 27 ) break;
}
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