blob_finder.h

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/*
 * Copyright (C) 2015
 *
 * This file is part of Paparazzi.
 *
 * Paparazzi 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, or (at your option)
 * any later version.
 *
 * Paparazzi 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 paparazzi; see the file COPYING.  If not, see
 * <http://www.gnu.org/licenses/>.
 *
 */
 
#ifndef BLOB_FINDER_H
#define BLOB_FINDER_H
 
 
#include "modules/computer_vision/lib/vision/image.h"
 
 
/* YUV Color Filter Parameters */
struct image_filter_t {
  uint8_t y_min;            
  uint8_t y_max;
  uint8_t u_min;
  uint8_t u_max;
  uint8_t v_min;
  uint8_t v_max;
};
 
/* Blob object: connected pixels */
struct image_label_t {
  uint16_t id;              
  uint8_t filter;           
 
  uint32_t pixel_cnt;       
  uint16_t x_min;           
  uint16_t y_min;
  uint32_t x_sum;           
  uint32_t y_sum;
 
  struct point_t contour[512];
  uint16_t contour_cnt;
 
  uint16_t corners[4];
};
 
void image_labeling(struct image_t *input, struct image_t *output, struct image_filter_t *filters, uint8_t filters_cnt,
                    struct image_label_t *labels, uint16_t *labels_count);
 
#endif /* BLOB_FINDER_H */