/*
* svrt is the ``Synthetic Visual Reasoning Test'', an image
* generator for evaluating classification performance of machine
* learning systems, humans and primates.
*
* Copyright (c) 2009 Idiap Research Institute, http://www.idiap.ch/
* Written by Francois Fleuret
*
* This file is part of svrt.
*
* svrt is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* svrt 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 svrt. If not, see .
*
*/
#include "vision_problem_18.h"
#include "shape.h"
VisionProblem_18::VisionProblem_18() { }
void VisionProblem_18::generate(int label, Vignette *vignette) {
int error;
int nb_shapes = 6;
int xs[nb_shapes], ys[nb_shapes];
Shape shape1, shape2;
shape1.randomize(part_size / 2, hole_size / 2);
shape2.copy(&shape1);
do {
vignette->clear();
error = 0;
// First half of the shapes are random
for(int n = 0; n < nb_shapes/2; n++) {
xs[n] = int(drand48() * (Vignette::width - part_size + 1)) + part_size/2;
ys[n] = int(drand48() * (Vignette::height - part_size + 1)) + part_size/2;
error |= shape1.overwrites(vignette, xs[n], ys[n]);
shape1.draw(vignette, xs[n], ys[n]);
}
for(int n = nb_shapes/2; n < nb_shapes; n++) {
if(label == 1) {
xs[n] = Vignette::width - xs[n - nb_shapes/2];
ys[n] = ys[n - nb_shapes/2];
} else {
xs[n] = int(drand48() * (Vignette::width - part_size + 1)) + part_size/2;
ys[n] = ys[n - nb_shapes/2];
}
error |= shape2.overwrites(vignette, xs[n], ys[n]);
shape2.draw(vignette, xs[n], ys[n]);
}
} while(error);
}