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https://github.com/eddyem/eddys_snippets.git
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87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
/*
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* binmorph.h
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*
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* Copyright 2013 Edward V. Emelianoff <eddy@sao.ru>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#pragma once
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#ifndef __EROSION_DILATION_H__
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#define __EROSION_DILATION_H__
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#include <stdbool.h>
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#include <stdlib.h>
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#ifdef EBUG
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#ifndef DBG
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#define DBG(...) do{fprintf(stderr, __VA_ARGS__);}while(0)
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#endif
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#endif
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#define _U_ __attribute__((__unused__))
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#ifndef Malloc
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#define Malloc my_alloc
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#endif
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#ifndef FREE
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#define FREE(arg) do{free(arg); arg = NULL;}while(0)
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#endif
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#ifndef _
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#define _(X) X
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#endif
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// auxiliary functions
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void *my_alloc(size_t N, size_t S);
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double dtime();
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void printC(unsigned char *i, int W, int H);
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void printB(bool *i, int W, int H);
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void morph_init(); // there's no need to run it by hands, but your will is the law
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// convert image types
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unsigned char *bool2char(bool *im, int W, int H, int *stride);
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bool *char2bool(unsigned char *image, int W, int H, int W_0);
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size_t *char2st(unsigned char *image, int W, int H, int W_0);
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// morphological operations
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unsigned char *dilation(unsigned char *image, int W, int H);
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unsigned char *erosion(unsigned char *image, int W, int H);
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unsigned char *FC_filter(unsigned char *image, int W, int H);
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// logical operations
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unsigned char *imand(unsigned char *im1, unsigned char *im2, int W, int H);
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unsigned char *substim(unsigned char *im1, unsigned char *im2, int W, int H);
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// conncomp
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// this is a box structure containing one object; data is aligned by original image bytes!
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typedef struct {
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unsigned char *data; // pattern data in "packed" format
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int x, // x coordinate of LU-pixel of box in "unpacked" image (by pixels)
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y, // y -//-
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x_0; // x coordinate in "packed" image (morph operations should work with it)
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size_t N;// number of component, starting from 1
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} CCbox;
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CCbox *cclabel4(unsigned char *I, int W, int H, int W_0, size_t *Nobj);
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CCbox *cclabel8(unsigned char *I, int W, int H, int W_0, size_t *Nobj);
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CCbox *cclabel8_1(unsigned char *I, int W, int H, int W_0, size_t *Nobj);
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#endif // __EROSION_DILATION_H__
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