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segment-image.h
executable file
·53 lines (44 loc) · 1.67 KB
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segment-image.h
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/*
Copyright (C) 2006 Pedro Felzenszwalb
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
*/
#ifndef SEGMENT_IMAGE
#define SEGMENT_IMAGE
#include <cstdlib>
#include "image.h"
#include "misc.h"
#include "filter.h"
#include "segment-graph.h"
// random color
rgb random_rgb();
// dissimilarity measure between pixels
static inline float diff(image<float> *r, image<float> *g, image<float> *b,
int x1, int y1, int x2, int y2) {
return sqrt(square(imRef(r, x1, y1)-imRef(r, x2, y2)) +
square(imRef(g, x1, y1)-imRef(g, x2, y2)) +
square(imRef(b, x1, y1)-imRef(b, x2, y2)));
}
/*
* Segment an image
*
* Returns a color image representing the segmentation.
*
* im: image to segment.
* sigma: to smooth the image.
* c: constant for treshold function.
* min_size: minimum component size (enforced by post-processing stage).
* num_ccs: number of connected components in the segmentation.
*/
image<rgb> *segment_image(image<rgb> *im, float sigma, float c, int min_size,
int *num_ccs);
#endif