cImg simple read & display a file example

cImg_sample_read.cpp

#ifndef cimg_plugin
#define cimg_plugin " "


#include "CImg.h"
using namespace cimg_library;
#ifndef cimg_imagepath
#define cimg_imagepath "img/"
#endif

#include <string>
#include <iostream>

// Main procedure
//----------------
int main(int argc, char* argv[]) {
	CImg<short> img1;
	if (argc == 2){
		std::string s(cimg_imagepath);
		s.append (argv[1]);
		std::cout << "load : " << s << std::endl;
		img1 = CImg<short>(s.c_str());
	}
	else
		img1 = CImg<short>(cimg_imagepath "simple.png");

	const float default_color[] = { 30,30,80 };
	// Modify 'img1' using the RGB pixel accessor.
	//  cimg_forXY(img1,x,y)
	//  if (!((x*y)%31)) img1.RGB_at(x,y) = default_color;
	// else if ((x+y)%2) img1.RGB_at(x,y) = img2.RGB_at(x,y);
	img1.display();

	// Quit.
	return 0;
}

#else
#endif