102 lines
2.0 KiB
C
102 lines
2.0 KiB
C
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/*
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pov_hf15e.c
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===========
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op<EFBFBD>rations de morphologie math<EFBFBD>matique appliqu<EFBFBD>es
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aux height-fields.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "../tthimage.h"
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/*::------------------------------------------------------------------::*/
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static struct
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{
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int x, y;
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} off[] =
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{
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{ -1, -1 },
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{ 0, -1 },
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{ 1, -1 },
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{ -1, 0 },
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{ 0, 0 },
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{ 1, 0 },
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{ -1, 1 },
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{ 0, 1 },
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{ 1, 1 }
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};
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/*::------------------------------------------------------------------::*/
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/*
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* le param<EFBFBD>tre 'coef' n'est pas utilis<EFBFBD>. D'ailleurs, je ne vois
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* pas trop quoi y mettre ?
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*/
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int
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Image_hf15_dilate(Image_Desc *src, Image_Desc *dst, int coef)
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{
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int foo;
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int x, y, h, hmax;
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if ( (foo=Image_compare_desc(src, dst)) )
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{
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fprintf(stderr, "Image hf15 dilate: images differents %d\n", foo);
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return foo;
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}
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for (y=1; y<dst->height-1; y++)
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{
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for (x=1; x<dst->width-1; x++)
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{
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hmax = -1664;
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for (foo=0; foo<9; foo++)
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{
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h = Image_hf15_height(src, x+off[foo].x, y+off[foo].y);
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if (h > hmax) hmax = h;
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}
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Image_hf15_plot(dst, x, y, hmax);
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}
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}
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return FUNC_IS_BETA;
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}
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/*::------------------------------------------------------------------::*/
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/*
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* le param<EFBFBD>tre 'coef' n'est pas utilis<EFBFBD>.
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*/
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int
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Image_hf15_erode(Image_Desc *src, Image_Desc *dst, int coef)
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{
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int foo;
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int x, y, h, hmin;
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if ( (foo=Image_compare_desc(src, dst)) )
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{
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fprintf(stderr, "Image hf15 erode: images differents %d\n", foo);
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return foo;
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}
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for (y=1; y<dst->height-1; y++)
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{
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for (x=1; x<dst->width-1; x++)
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{
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hmin = 42042;
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for (foo=0; foo<9; foo++)
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{
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h = Image_hf15_height(src, x+off[foo].x, y+off[foo].y);
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if (h < hmin) hmin = h;
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}
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Image_hf15_plot(dst, x, y, hmin);
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}
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}
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return FUNC_IS_BETA;
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}
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/*::------------------------------------------------------------------::*/
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/*
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* Et maintenant, il reste <EFBFBD> coder le chapeau haut-de-forme
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*/
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/*::------------------------------------------------------------------::*/
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