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erosion-dilation/binmorph.h

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+/*
+ * binmorph.h
+ *
+ * Copyright 2013 Edward V. Emelianoff <eddy@sao.ru>
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#pragma once
+#ifndef __EROSION_DILATION_H__
+#define __EROSION_DILATION_H__
+
+#include <stdbool.h>
+#include <stdlib.h>
+
+#ifdef EBUG
+#ifndef DBG
+	#define DBG(...) do{fprintf(stderr, __VA_ARGS__);}while(0)
+#endif
+#endif
+
+#define _U_    __attribute__((__unused__))
+
+#ifndef Malloc
+#define Malloc my_alloc
+#endif
+
+#ifndef FREE
+#define FREE(arg) do{free(arg); arg = NULL;}while(0)
+#endif
+
+#ifndef _
+#define _(X) X
+#endif
+
+// auxiliary functions
+void *my_alloc(size_t N, size_t S);
+double dtime();
+void printC(unsigned char *i, int W, int H);
+void printB(bool *i, int W, int H);
+void morph_init();  // there's no need to run it by hands, but your will is the law
+
+// convert image types
+unsigned char *bool2char(bool *im, int W, int H, int *stride);
+bool *char2bool(unsigned char *image, int W, int H, int W_0);
+size_t *char2st(unsigned char *image, int W, int H, int W_0);
+
+// morphological operations
+unsigned char *dilation(unsigned char *image, int W, int H);
+unsigned char *erosion(unsigned char *image, int W, int H);
+unsigned char *FC_filter(unsigned char *image, int W, int H);
+
+// logical operations
+unsigned char *imand(unsigned char *im1, unsigned char *im2, int W, int H);
+unsigned char *substim(unsigned char *im1, unsigned char *im2, int W, int H);
+
+// conncomp
+// this is a box structure containing one object; data is aligned by original image bytes!
+typedef struct {
+	unsigned char *data; // pattern data in "packed" format
+	int x,   // x coordinate of LU-pixel of box in "unpacked" image (by pixels)
+	y,       // y -//-
+	x_0;     // x coordinate in "packed" image (morph operations should work with it)
+	size_t N;// number of component, starting from 1
+} CCbox;
+
+CCbox *cclabel4(unsigned char *I, int W, int H, int W_0, size_t *Nobj);
+CCbox *cclabel8(unsigned char *I, int W, int H, int W_0, size_t *Nobj);
+
+CCbox *cclabel8_1(unsigned char *I, int W, int H, int W_0, size_t *Nobj);
+#endif // __EROSION_DILATION_H__
+
+