Hi All,
i tried to update an outdated [sample code on opencv/wiki](https://github.com/Itseez/opencv/wiki/DisplayManyImages)
The changes I have made up to now are as follows.
#include
#include
using namespace cv;
using namespace std;
int showManyImages( const String winName, const vector images );
int main( int argc, char** argv )
{
vector images;
for ( int i = 0; i < 15; i++ )
{
Mat image( 240,320,CV_8UC3, Scalar( (rand()&255), (rand()&255), (rand()&255) ));
circle( image, Point( image.cols / 2, image.rows / 2 ), image.cols / 3, Scalar( (rand()&255), (rand()&255), (rand()&255) ) );
images.push_back( image );
showManyImages("showManyImages test", images);
waitKey();
}
return 0;
}
int showManyImages( const String winName, const vector images )
{
int nImg = images.size() > 12 ? 12 : (int)images.size();
int size;
int x, y;
// w - Maximum number of images in a row
// h - Maximum number of images in a column
int w, h;
// scale - How much we have to resize the image
float scale;
int max;
// TODO: code-block #1 - should be replaced with more robust code
// start of code-block #1
if (nImg <= 0)
{
return -1;
}
else if (nImg == 1)
{
w = h = 1;
size = 300;
}
else if (nImg == 2)
{
w = 2;
h = 1;
size = 300;
}
else if (nImg == 3 || nImg == 4)
{
w = 2;
h = 2;
size = 300;
}
else if (nImg == 5 || nImg == 6)
{
w = 3;
h = 2;
size = 200;
}
else if (nImg == 7 || nImg == 8)
{
w = 4;
h = 2;
size = 200;
}
else
{
w = 4;
h = 3;
size = 150;
}
// end of code-block #1
Mat dispayImage = Mat::zeros(Size(100 + size*w, 60 + size*h), CV_8UC3);
for (int i= 0, m=20, n=20; i y ) ? x : y;
scale = (float) ( (float) max / size );
if ( i%w == 0 && m != 20 )
{
m = 20;
n += 20 + size;
}
Mat imageROI = dispayImage( Rect( m, n, (int)( x / scale ), (int)( y / scale )));
resize( images[i], imageROI, Size((int)( x / scale ), (int)( y / scale )));
}
imshow( winName, dispayImage );
return 0;
}
i think the part marked as code-block #1 should be replaced with more robust code.
any suggestion and contribution is welcome
↧