--- /dev/null
+/*
+ * 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 <francois.fleuret@idiap.ch>
+ *
+ * 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 selector. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "vision_problem_16.h"
+#include "shape.h"
+
+VisionProblem_16::VisionProblem_16() { }
+
+void VisionProblem_16::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);
+
+ if(label == 1) {
+ shape2.symmetrize(0.0, 1.0);
+ }
+
+ 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++) {
+ xs[n] = Vignette::width - xs[n - nb_shapes/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);
+}