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86 lines
2.7 KiB
C
86 lines
2.7 KiB
C
/*
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* This file is part of the loccorr project.
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* Copyright 2021 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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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 3 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, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#ifndef BINMORPH_H__
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#define BINMORPH_H__
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#include <stdbool.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include "fits.h"
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// minimal image size for morph operations
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#define MINWIDTH (9)
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#define MINHEIGHT (3)
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// simple box with given borders
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typedef struct{
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uint16_t xmin;
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uint16_t xmax;
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uint16_t ymin;
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uint16_t ymax;
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uint32_t area; // total amount of object pixels inside the box
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} Box;
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typedef struct{
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size_t Nobj;
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Box *boxes;
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} ConnComps;
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// morphological operations:
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uint8_t *dilation(uint8_t *image, int W, int H);
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uint8_t *dilationN(uint8_t *image, int W, int H, int N);
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uint8_t *erosion(uint8_t *image, int W, int H);
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uint8_t *erosionN(uint8_t *image, int W, int H, int N);
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uint8_t *openingN(uint8_t *image, int W, int H, int N);
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uint8_t *closingN(uint8_t *image, int W, int H, int N);
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uint8_t *topHat(uint8_t *image, int W, int H, int N);
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uint8_t *botHat(uint8_t *image, int W, int H, int N);
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// clear non 4-connected pixels
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uint8_t *filter4(uint8_t *image, int W, int H);
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// clear single pixels
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uint8_t *filter8(uint8_t *image, int W, int H);
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size_t *cclabel4(uint8_t *Img, int W, int H, ConnComps **CC);
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size_t *cclabel8(uint8_t *Img, int W, int H, size_t *Nobj);
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#if 0
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// logical operations
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uint8_t *imand(uint8_t *im1, uint8_t *im2, int W, int H);
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uint8_t *substim(uint8_t *im1, uint8_t *im2, int W, int H);
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/*
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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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uint8_t *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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*/
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IMAGE *cclabel4(IMAGE *I, double threshold, size_t *Nobj);
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IMAGE *cclabel8(IMAGE *I, double threshold, size_t *Nobj);
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#endif
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#endif // BINMORPH_H__
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