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85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
/*
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PerceptualDiff - a program that compares two images using a perceptual metric
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based on the paper :
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A perceptual metric for production testing. Journal of graphics tools, 9(4):33-40, 2004, Hector Yee
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Copyright (C) 2006 Yangli Hector Yee
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This program is free software; you can redistribute it and/or modify it under the terms of the
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GNU General Public License as published by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with this program;
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if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdio.h>
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#include <string.h>
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#include <math.h>
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#include <string>
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#include "lpyramid.h"
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#include "RGBAImage.h"
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#include "CompareArgs.h"
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#include "Metric.h"
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static bool Yee_Compare(CompareArgs &args)
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{
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if ((args.ImgA->Get_Width() != args.ImgB->Get_Width()) ||
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(args.ImgA->Get_Height() != args.ImgB->Get_Height())) {
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args.ErrorStr = "Image dimensions do not match\n";
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return false;
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}
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unsigned int i, dim, pixels_failed;
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dim = args.ImgA->Get_Width() * args.ImgA->Get_Height();
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bool identical = true;
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for (i = 0; i < dim; i++) {
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if (args.ImgA->Get(i) != args.ImgB->Get(i)) {
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identical = false;
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break;
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}
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}
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if (identical) {
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args.ErrorStr = "Images are binary identical\n";
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return true;
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}
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pixels_failed = Yee_Compare_Images (args.ImgA, args.ImgB,
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args.Gamma, args.Luminance,
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args.FieldOfView, args.Verbose);
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if (pixels_failed < args.ThresholdPixels) {
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args.ErrorStr = "Images are perceptually indistinguishable\n";
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return true;
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}
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char different[100];
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sprintf(different, "%d pixels are different\n", pixels_failed);
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args.ErrorStr = "Images are visibly different\n";
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args.ErrorStr += different;
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return false;
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}
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int main(int argc, char **argv)
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{
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CompareArgs args;
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if (!args.Parse_Args(argc, argv)) {
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printf("%s", args.ErrorStr.c_str());
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return -1;
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} else {
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if (args.Verbose) args.Print_Args();
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}
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int result = Yee_Compare(args) == true;
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if (result) {
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printf("PASS: %s\n", args.ErrorStr.c_str());
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} else {
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printf("FAIL: %s\n", args.ErrorStr.c_str());
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}
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return result;
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}
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