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i have trouble with handling mouse event in opencv

i want to write a program with this feature: 1:when a user click left button of mouse on windows a circle is constructed with 15 radius at first i make a black image 500500 and i use setMouseCallback for my_mouse_callback and in function my_mouse_callback i write my circle code ,when run the program there arent any errors but only there is a black image 500500 i know my program has trouble but where? please help me my program is like this:

include <cv.h>

include <highgui.h>

include <iostream>

using namespace std; using namespace cv; Mat image; void my_mouse_callback( int event, int x, int y, int flags, void* param ); int main() { int i,j,k; Mat image; image.create(500,500,CV_8UC3); namedWindow("amin"); for(i=0;i<500;i++){ for(j=0;j<500;j++){ for(k=0;k<3;k++){ Vec3b &intensity = image.at<vec3b>(j, i); intensity.val[k]=0; } } } setMouseCallback( "amin", my_mouse_callback, &image );

imshow("amin",image);
waitKey(0);
return(0);

} void my_mouse_callback( int event, int x, int y, int flags, void* param ) { Mat &image= ¶m; if(event==CV_EVENT_LBUTTONDOWN){ circle( image, Point(x,y), 20, Scalar(0xff,0xff,0xff)

         );
}

}

i have trouble problems with handling mouse event in opencv

include <cv.h>

include <highgui.h>

include <iostream>

using namespace std; using namespace cv; Mat image; void my_mouse_callback( int event, int x, int y, int flags, void* param ); int main() ~~{ int i,j,k;~~ {

int i,j,k;

Mat ~~image; image.create(500,500,CV_8UC3); namedWindow("amin"); for(i=0;i<500;i++){ for(j=0;j<500;j++){ for(k=0;k<3;k++){~~ image;

image.create(500,500,CV_8UC3);

namedWindow("amin");

for(i=0;i<500;i++){

for(j=0;j<500;j++){

for(k=0;k<3;k++){

Vec3b &intensity = image.at<vec3b>(j, ~~i);~~ i);

intensity.val[k]=0; ~~} } } setMouseCallback( "amin", my_mouse_callback, &image~~ } } } setMouseCallback(

"amin",

my_mouse_callback,

&image

);

imshow("amin",image); waitKey(0); imshow("amin",image); waitKey(0);
return(0);

} void my_mouse_callback( int event, int x, int y, int flags, void* param ) ~~{ Mat &image= ¶m; if(event==CV_EVENT_LBUTTONDOWN){ circle( image, Point(x,y), 20,~~ {

if(event==CV_EVENT_LBUTTONDOWN){

circle(

image,

Point(x,y),

20,

Scalar(0xff,0xff,0xff)

); }

}

i have problems with handling mouse event in opencv

include <cv.h>

include <highgui.h>

include <iostream>

using namespace std; using namespace ~~cv;~~ cv;

Mat ~~image;~~ image;

void ~~my_mouse_callback(~~ my_mouse_callback(

int event, int x, int y, int flags, void* ~~param~~ param

); int main() {

int i,j,k;

Mat image;

image.create(500,500,CV_8UC3);

namedWindow("amin");

for(i=0;i<500;i++){

for(j=0;j<500;j++){

for(k=0;k<3;k++){

Vec3b &intensity = image.at<vec3b>(j, i);

intensity.val[k]=0; } } } setMouseCallback(

"amin",

my_mouse_callback,

&image

);

imshow("amin",image);

waitKey(0);

return(0); } void my_mouse_callback( int event, int x, int y, int flags, void* param ) {

if(event==CV_EVENT_LBUTTONDOWN){

circle(

image,

Point(x,y),

20,

Scalar(0xff,0xff,0xff)

         );
}

}

i have problems with handling mouse event in opencv

i want to write a program with this ~~feature:~~ feature:

1:when a user click left button of mouse on windows a circle is constructed with 15 ~~radius~~ radius

at first i make a black image ~~500500~~ 500*500

and i use setMouseCallback for my_mouse_callback and in function my_mouse_callback i write my

circle code ,when run the program there arent any errors but only there is a black image ~~500~~500 500*500 , i know my program has trouble but where? please help me my program is like this:

include <cv.h>

include <highgui.h>

include <iostream>

using namespace std; using namespace cv;

Mat image;

void my_mouse_callback(

int event, int x, int y, int flags, void* param

); int main() {

int i,j,k;

Mat image;

image.create(500,500,CV_8UC3);

namedWindow("amin");

for(i=0;i<500;i++){

for(j=0;j<500;j++){

for(k=0;k<3;k++){

Vec3b &intensity = image.at<vec3b>(j, i);

intensity.val[k]=0; } } } setMouseCallback(

"amin",

my_mouse_callback,

&image

);

imshow("amin",image);

waitKey(0);

return(0); } void my_mouse_callback( int event, int x, int y, int flags, void* param ) {

if(event==CV_EVENT_LBUTTONDOWN){

circle(

image,

Point(x,y),

20,

Scalar(0xff,0xff,0xff)

         );
}

}

i have problems with handling mouse event in opencv

i want to write a program with this feature:

1:when a user click left button of mouse on windows a circle is constructed with 15 radius

at first i make a black image 500*500

and i use setMouseCallback for my_mouse_callback and in function my_mouse_callback i write my my

circle code ,when run the program there arent any errors but only there is a black image 500*500 , , i know my program has trouble but ~~where?~~ where? please help me my program is like this:

include <cv.h>

include <highgui.h>

include <iostream>

using namespace std; using namespace cv;

Mat image; image; void my_mouse_callback( int my_mouse_callback(int event, int x, int y, int flags, void* param ); int main() { int i,j,k; param); int main() { int i,j,k; Mat image; image.create(500,500,CV_8UC3); namedWindow("amin"); for(i=0;i<500;i++){ for(j=0;j<500;j++){ for(k=0;k<3;k++){ image; image.create(500,500,CV_8UC3); namedWindow("amin"); for(i=0;i<500;i++){ for(j=0;j<500;j++){ for(k=0;k<3;k++){ Vec3b &intensity = image.at<vec3b>(j, i); intensity.val[k]=0; i); intensity.val[k]=0; } } } setMouseCallback( "amin", my_mouse_callback, &image ); imshow("amin",image); waitKey(0); return(0); } void my_mouse_callback( int event, int x, int y, int flags, void* param ) { if(event==CV_EVENT_LBUTTONDOWN){ circle( image, Point(x,y), 20, Scalar(0xff,0xff,0xff) ); } } setMouseCallback( "amin", my_mouse_callback, &image ); imshow("amin",image); waitKey(0); return(0); } void my_mouse_callback( int event, int x, int y, int flags, void* param ) { if(event==CV_EVENT_LBUTTONDOWN){ circle( image, Point(x,y), 20, Scalar(0xff,0xff,0xff) ); } }

          6    No.6 Revision 
      updated 
        2013-12-13 13:47:50 -0600
     
 
 
  
 
 
 
  i have problems with handling mouse event in opencv
 i want to write a program with this feature:
 1:when a user click left button of mouse on windows a circle is constructed with 15 radiusfor ex  radius (15)
 at first i make a black image 500*500
 and i use setMouseCallback for my_mouse_callback and in function my_mouse_callback i write my
 circle code ,when run the program there arent any errors but only there is a black image 500*500 , i know my program has trouble but where? please help me my program is like this:
 Mat image;

void my_mouse_callback(int event, int x, int y, int flags, void* param);

int main() {

int i,j,k;

Mat image;

image.create(500,500,CV_8UC3);

namedWindow("amin");

 for(i=0;i<500;i++){

 for(j=0;j<500;j++){

   for(k=0;k<3;k++){

   Vec3b &intensity = image.at<vec3b>(j, i);

   intensity.val[k]=0; 
   }
 }
 } 
   setMouseCallback(

      "amin",

      my_mouse_callback,

      &image

  );

      imshow("amin",image);

       waitKey(0);

       return(0); 
   } 

   void my_mouse_callback( int event, int x, int y, int flags, void* param ) {

    if(event==CV_EVENT_LBUTTONDOWN){

    circle(

    image,

    Point(x,y),

    20,

    Scalar(0xff,0xff,0xff)

     );
 }
}
 
 
 
          7    No.7 Revision 
      updated 
        2013-12-13 14:53:30 -0600
     
 
 
  
 
 
 
  i have problems with handling mouse event in opencv
 i want to write a program with this feature:
 1:when a user click left button of mouse on windows a circle is constructed with for ex  radius (15)
 at first i make a black image 500*500
 and i use setMouseCallback for my_mouse_callback and in function my_mouse_callback i write my
 circle code ,when run the program there arent any errors but only there is a black image 500*500 , i know my program has trouble but where? please help me my program is like this:
 void my_mouse_callback(int event, int x, int y, int flags, void* param);
 int main() {
    int i,j,k;
 Mat image;

void my_mouse_callback(int event, int x, int y, int flags, void* param);

int main() {

int i,j,k;

Mat image;

image.create(500,500,CV_8UC3);

namedWindow("amin");

 for(i=0;i<500;i++){
   for(j=0;j<500;j++){
     for(k=0;k<3;k++){
     Vec3b &intensity = image.at<vec3b>(j, i);
     intensity.val[k]=0; 
    }
 }
   } 
} 

setMouseCallback( "amin", my_mouse_callback, &image );

imshow("amin",image);
waitKey(0);

return(0);
 } 
   setMouseCallback(

      "amin",

      my_mouse_callback,

      &image

  );

      imshow("amin",image);

       waitKey(0);

       return(0); 
   } 

   void my_mouse_callback( int event, int x, int y, int flags, void* param ) {
     if(event==CV_EVENT_LBUTTONDOWN){

    circle(

    image,

    Point(x,y),

    20,

    Scalar(0xff,0xff,0xff)

             circle( image, Point(x,y), 20, Scalar(0xff,0xff,0xff) );
  }
}
 
 
 
          8    No.8 Revision 
      updated 
        2013-12-13 14:54:33 -0600
     
 
 
  
 
 
 
  i have problems with handling mouse event in opencv
 i want to write a program with this feature:
 1:when a user click left button of mouse on windows a circle is constructed with for ex  radius (15)
 at first i make a black image 500*500
 and i use setMouseCallback for my_mouse_callback and in function my_mouse_callback i write my
 circle code ,when run the program there arent any errors but only there is a black image 500*500 , i know my program has trouble but where? please help me my program is like this:
 void my_mouse_callback(int event, int x, int y, int flags, void* param);
 int main() {
    int i,j,k;
 Mat image;
image.create(500,500,CV_8UC3);

namedWindow("amin");

for(i=0;i<500;i++){
    for(j=0;j<500;j++){
        for(k=0;k<3;k++){
            Vec3b &intensity = image.at<vec3b>(j, i);
            intensity.val[k]=0; 
        }
    } 
} 

setMouseCallback( "amin", my_mouse_callback, &image );

imshow("amin",image);
waitKey(0);

return(0);
 } 
 
void my_mouse_callback( int event, int x, int y, int flags, void* param ) {
 if(event==CV_EVENT_LBUTTONDOWN){
     circle( image, Point(x,y), 20, Scalar(0xff,0xff,0xff) );
 }
 }
 
 
 
          9    No.9 Revision 
      updated 
        2013-12-13 14:56:28 -0600
     
 
 
  
 
 
 
  i have problems with handling mouse event in opencv
 i want to write a program with this feature:
 1:when a user click left button of mouse on windows a circle is constructed with for ex  radius (15)
 at first i make a black image 500*500
 and i use setMouseCallback for my_mouse_callback and in function my_mouse_callback i write my
 circle code ,when run the program there arent any errors but only there is a black image 500*500 ,  that when i click left button of mouse nothing happens, i know my program has trouble but where? please help me my program is like this:
 void my_mouse_callback(int event, int x, int y, int flags, void* param);
 int main() {
    int i,j,k;
 Mat image;
image.create(500,500,CV_8UC3);

namedWindow("amin");

for(i=0;i<500;i++){
    for(j=0;j<500;j++){
        for(k=0;k<3;k++){
            Vec3b &intensity = image.at<vec3b>(j, i);
            intensity.val[k]=0; 
        }
    } 
} 

setMouseCallback( "amin", my_mouse_callback, &image );

imshow("amin",image);
waitKey(0);

return(0);
 } 
 void my_mouse_callback( int event, int x, int y, int flags, void* param ) {
if(event==CV_EVENT_LBUTTONDOWN){
    circle( image, Point(x,y), 20, Scalar(0xff,0xff,0xff) );
}
 }