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#include "CImg.h"
using namespace cimg_library;
int main() {
CImg<unsigned char> image("lena.jpg"), visu(500,400,1,3,0);
const unsigned char red[] = { 255,0,0 }, green[] = { 0,255,0 }, blue[] = { 0,0,255 };
image.blur(2.5);
CImgDisplay main_disp(image,"Click a point"), draw_disp(visu,"Intensity profile");
while (!main_disp.is_closed && !draw_disp.is_closed) {
main_disp.wait();
if (main_disp.button && main_disp.mouse_y>=0) {
const int y = main_disp.mouse_y;
visu.fill(0).draw_graph(image.get_crop(0,y,0,0,image.dimx()-1,y,0,0),red,1,255,0);
visu.draw_graph(image.get_crop(0,y,0,1,image.dimx()-1,y,0,1),green,1,255,0);
visu.draw_graph(image.get_crop(0,y,0,2,image.dimx()-1,y,0,2),blue,1,255,0).display(draw_disp);
}
}
return 0;
}
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