第四週

沒有隱形人也沒有小物

(......)

#include <cv.h>

#include <cxcore.h>

#include <highgui.h>

#include <stdio.h>

#define refBlue 0

#define refGreen 0

#define refRed 50

#define targetBlue 0

#define targetGreen 0

#define targetRed 255

#define targetBlue1 35

#define targetGreen1 125

#define targetRed1 45

#define targetBlue2 80

#define targetGreen2 70

#define targetRed2 60

#define targetBlue3 160

#define targetGreen3 50

#define targetRed3 255

#define TH1 100

CvCapture *capture; 

IplImage* frame = NULL;

IplImage* frame2 = NULL;

int main( int argc, char** argv )

{capture=cvCreateCameraCapture( 0 );

while(1)

{

//載入圖像，

frame = cvQueryFrame(capture); 

frame2 = cvCreateImage(cvSize(frame->width,frame->height), IPL_DEPTH_8U, 3);

frame2=cvCloneImage(frame);

for (int y=0; y<frame2->height; y++) {  

  uchar* ptr1=(uchar*) (frame2->imageData +y*frame2->widthStep); 

  uchar* ptr2=(uchar*) (frame2->imageData +y*frame2->widthStep); 

  for (int x=0; x<frame2->width; x++) { 

      

     int D= (ptr1[3*x] - refBlue) *  (ptr1[3*x] - refBlue) +

            (ptr1[3*x+1] - refGreen) * (ptr1[3*x+1] -refGreen) +

            (ptr1[3*x+2] - refRed) * (ptr1[3*x+2] - refRed);

    //printf("%d %d %d %.2f\n",ptr1[3*x],ptr1[3*x+1],ptr1[3*x+2], sqrt(D));    

        

    if (sqrt(D) < TH1 && x < frame -> width/2 && y < frame->height/2) {

  

         ptr1[3*x]=targetBlue;

         ptr1[3*x+1]=targetGreen;

         ptr1[3*x+2]=targetRed;  

  } 

         

    if (sqrt(D) < TH1 && x < frame->width/2 && y > frame->height/2){

  

         ptr1[3*x]=targetBlue1;

         ptr1[3*x+1]=targetGreen1;

         ptr1[3*x+2]=targetRed1; 

  }        

         

    if (sqrt(D) < TH1 && x > frame->width/2 && y < frame->height/2){

         ptr1[3*x]=targetBlue2;

         ptr1[3*x+1]=targetGreen2;

         ptr1[3*x+2]=targetRed2;

}

 

    if (sqrt(D) < TH1 && x > frame->width/2 && y > frame->height/2) {

  

         ptr1[3*x]=targetBlue3;

         ptr1[3*x+1]=targetGreen3;

         ptr1[3*x+2]=targetRed3;   

}

        

 

}

 

}

cvNamedWindow("Original frame", 1);

cvNamedWindow("Changed frame", 1);

cvShowImage( "Original frame", frame );

cvShowImage( "Changed frame", frame2 );

cvWaitKey(20);

}

cvDestroyWindow( "Original frame" );

cvDestroyWindow( "Changed frame" );

cvReleaseImage( &frame );

cvReleaseImage( &frame2 );

}

我學到了那個{}所處位置的重要性.............