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/*
PerceptualDiff - a program that compares two images using a perceptual metric
based on the paper :
A perceptual metric for production testing. Journal of graphics tools,
9(4):33-40, 2004, Hector Yee
Copyright (C) 2006-2011 Yangli Hector Yee
Copyright (C) 2011-2016 Steven Myint, Jeff Terrace
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "compare_args.h"
#include "lpyramid.h"
#include "metric.h"
#include "rgba_image.h"
#include <cstdlib>
#include <ciso646>
#include <iostream>
#include <string>
int main(const int argc, char **const argv)
{
try
{
const pdiff::CompareArgs args(argc, argv);
if (args.verbose_)
{
args.print_args();
}
std::string reason;
float error_sum = 0;
const auto passed = pdiff::yee_compare(
*args.image_a_,
*args.image_b_,
args.parameters_,
nullptr,
&error_sum,
&reason,
args.image_difference_.get(),
args.verbose_ ? &std::cout : nullptr);
if (passed)
{
if (args.verbose_)
{
std::cout << "PASS: " + reason;
}
}
else
{
std::cout << "FAIL: " + reason;
if (args.sum_errors_)
{
const auto normalized =
error_sum /
(args.image_a_->get_width() *
args.image_a_->get_height() * 255.);
std::cout << error_sum << " error sum\n";
std::cout << normalized << " normalzied error sum\n";
}
if (args.image_difference_.get())
{
args.image_difference_->write_to_file(args.image_difference_->get_name());
std::cerr << "Wrote difference image to "
<< args.image_difference_->get_name()
<< "\n";
}
}
return passed ? EXIT_SUCCESS : EXIT_FAILURE;
}
catch (const pdiff::ParseException &exception)
{
std::cerr << exception.what() << "\n";
return EXIT_FAILURE;
}
catch (const pdiff::RGBImageException &exception)
{
std::cerr << exception.what() << "\n";
return EXIT_FAILURE;
}
}
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