opencv摄像头捕获识别颜色

本文实例为大家分享了opencv摄像头捕获识别颜色的具体代码，供大家参考，具体内容如下

#include "highgui.h"
#include "iostream"
using namespace std;

int main()
{
CvCapture* pCap = cvCreateCameraCapture(1 );//这里-1也可以，不过我的电脑装的有CyberLink YouCam软件，
int flag=0;                       //OpenCV会默认调用该摄像头，而不调用系统的驱动

IplImage* frame =NULL;

if (cvCreateCameraCapture == NULL)
{
return(0);
}

cvNamedWindow("Camera",CV_WINDOW_FULLSCREEN);

while ((frame = cvQueryFrame(pCap)) != 0 && cvWaitKey(20) != 27)
{
frame = cvQueryFrame(pCap);
//cout<<frame->width<<" "<<frame->height<<endl;
flag=0;
for(int x=0;x<frame->height;x++)
{
for(int y=0;y<frame->width*3;y++)
{
//CV_IMAGE_ELEM(frame,uchar,x,y)=255;
if( ((uchar*)(frame->imageData+x*frame->widthStep))[y*frame->nChannels+0]<30 //b
&&((uchar*)(frame->imageData + x*frame->widthStep))[y*frame->nChannels + 1]<30 //g
&&((uchar*)(frame->imageData + x*frame->widthStep))[y*frame->nChannels + 2]>150) //r
flag++;

}
}
cout<<flag<<endl;
if(flag>70000)
cout<<"red";
else
cvShowImage("Camera",frame);
}

aaa: cvReleaseCapture(&pCap);
cvDestroyWindow("Camera");
system("pause");
return (0);
}

以上就是本文的全部内容，希望对大家的学习有所帮助

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