pcduino上使用QT+opencv实现拍照功能

Lily

试验器材：pcDuino一套、USB摄像头一个http://linksprite.com/wiki/index.php5?title=Products-description#pcDuino
1.如何搭建QT+opencv环境http://cnlearn.linksprite.com/

2、将摄像头的USB接口插入USB HUB里，输入代码：

#include <QtCore/QCoreApplication>

#include <cv.h>

#include <highgui.h>

#include <stdio.h>

#include <qdebug.h>

IplImage* DoPyrDown (IplImage* img, intfilter = IPL_GAUSSIAN_5x5){

   CvSize size = cvSize (img->width / 2, img->height / 2);

   IplImage* outImage = cvCreateImage (size, img->depth,img->nChannels);

   cvPyrDown (img, outImage);

   cvReleaseImage (&img);

   return  outImage;

}

int main(int argc, char *argv[])

{

   cvNamedWindow ("vedio");

   qDebug() << "vedio window!" << endl;

   CvCapture* capture;

   qDebug() << "find Camera!" << endl;

   if (1 == argc){

       capture = cvCreateCameraCapture(0);

    }

   else {

       capture = cvCreateCameraCapture (atoi(argv[1]));

    }

   assert (NULL != capture);

   IplImage* frame;

   char keyCode;

   qDebug() << "wait keyevent!" << endl;

   while ((keyCode = cvWaitKey(30))){

       if (keyCode == 65){

           qDebug() << "keyCode == 65" << endl;

           break;

       }

       if (keyCode == 27){

           qDebug() << "take photo" << endl;

           IplImage* outImage = cvCreateImage(cvGetSize(frame), frame->depth,frame->nChannels);

           cvCopy(frame, outImage, NULL);

           outImage = DoPyrDown(outImage);

           char* outImageName = "test.jpg";

           cvSaveImage(outImageName, outImage);

           cvReleaseImage(&outImage);

           qDebug() << "save photo successful" << endl;

       }

       frame = cvQueryFrame (capture);

       if (!frame){

           break;

       }

       cvShowImage("vedio",frame);

    }

   qDebug() << "begin to release!" << endl;

   cvReleaseImage(&frame);

   cvDestroyAllWindows();

   return 0;

}

3、代码运行后，可按ESC键进行拍照，照片会保存到指定路径

cxpcxpcxp

pcDuino   ？

.oο麽麽茶㊣

帧率多少？？