Question

I would like to know is there any library for C++ or C which allows to get png-image by coordinates. For example:
I have opened png file, and I need to get only the parf of it which starts from

x = 5
y = 5
w = 10
h = 10
and so on

So what library allows to do such kind of operations?
Thanks on advance

Answer 1

Using Magic++:

#include <Magick++.h> 
using namespace Magick; 

void main()
{
    Image image;
    image.read( "in.png" );

    // Crop the image to specified size (width, height, xOffset, yOffset)
    image.crop( Geometry(10, 10, 5, 5) );

    // Write the image to a file
    image.write( "out.png" ); 
}