Thanks!

I have created an object oriented image structure to wrap IplImage with shared_ptr.

It is very fast, easy to use and makes code infinitely easier to read.

The structure is called blImage and is part of my blImageAPI, which can be found at: http://www.barbato.us/2010/10/14/image-data-structure-based-shared_ptr-iplimage/

This makes IplImage so easy to use, you can do the following:

int main(int argc, char *argv[])
{
// Create a blank 8-bit color image
blImage< blColor3 > MyImage;

// Load an image from file
MyImage.LoadImageFromFile(“C:\\tux.png”);

// Create a floating point grayscale
// version of our colored image
blImage MyImage2 = MyImage;

// We can easily access pixel data very efficiently
for(int i = 0; i < MyImage2.size1(); ++i)
for(int j = 0; j < MyImage2.size2(); ++j)
MyImage2[i][j] += 100;

blImage MyImage3 = MyImage2;

// Let’s take the first derivative in both directions
cvSobel(MyImage2,MyImage2,1,1);

cvNamedWindow(“tux”,CV_WINDOW_AUTOSIZE);
cvShowImage(“tux”,MyImage3);
cvWaitKey(0);
return 0;
}

Good luck and enjoy

Thank you all for your help

but thank you anyway

This is may code:

IplImage* src = cvLoadImage(“C:\\Draw.jpg”,0);
CvMemStorage* storage = cvCreateMemStorage( 0);

CvSeq* lines = 0;
lines = cvHoughLines2( src, storage, CV_HOUGH_PROBABILISTIC, 1,CV_PI/180, 20, 30, 5);

for(int i = 0; i total; i++ )
{
CvPoint* line = (CvPoint*)cvGetSeqElem(lines,i);
// Here I use the point information
}

cvReleaseImage( &src);
cvReleaseMemStorage( &storage); // Here is the bug

Hi all, im using the java wrapper for openCV under windows. I have successfully installed openCV v1.0 (i tested the newest versions and they dont work properly), i have set the variable system Path properly pointing to the “bin” directory of my openCV installation software, i have also pasted the openCV.dll into the bin directory, i have placed properly the “hypermedia” and “processing” folders to the appropriate locations, i have attached all the appropriate jar files needed by openCV, i have tested all these in XP and Vista..

Despite all these steps i did, all the examples provided by the openCV for the java version (face detection, BlobDetection, Aplets, etc) work properly without linking or runtime exceptions BUT I HAVE BLACK SCREEN TO ALL OF THEM!!!

What should i do more???
Even the face detection works, i see the bounding box tracking the movement of my head but i dont have image, just blank background colour.

Any suggestions? Please Help..

return 0;
}

while i run the above program i got the black screen in window in my laptop(windows 7),
but i run the same program in windows vista the video can be display,,,
why the video did not display in windows7,,,

plz help me,,, i am waiting for your reply,,,

tpl1 = cvCreateImage( cvSize( tpl_width, tpl_height ),frame->depth, frame->nChannels );

tpl2 = cvCreateImage( cvSize( tpl_width, tpl_height ),frame->depth, frame->nChannels );

tpl1 = tpl2; // Memory leak
—————-
Before changing the pointer tpl1 to be equal to pointer tpl2, do this :
—————-
if(tpl1 != NULL){
cvReleaseImage(&tpl1);
}
tpl1 = tpl2; // No memory leak

———
IplImage *frame1, *frame2;
frame1 = cvQueryFrame(capture);
frame2 = cvQueryFrame(capture);

frame1 = frame2; // Memory leak
———–
Before changing the pointer frame1 to be equal to pointer frame2, do this :
cvReleaseImage(&frame1);