| /* AUTORIGHTS |
| Copyright (C) 2007 Princeton University |
| |
| This file is part of Ferret Toolkit. |
| |
| Ferret Toolkit 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. |
| |
| 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. |
| */ |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <cass.h> |
| |
| |
| typedef unsigned char pixel_t[3]; |
| |
| void inv (pixel_t pixel) |
| { |
| pixel[0] = 255;// - pixel[0]; |
| pixel[1] = 255;// - pixel[1]; |
| pixel[2] = 255;// - pixel[2]; |
| } |
| |
| void add_edge(unsigned char *rgb, int nx, int ny, unsigned char *rmap) |
| { |
| int iy,ix,l1,l2; |
| int mapsize; |
| pixel_t *pixels = (pixel_t *)rgb; |
| |
| mapsize = ny*nx; |
| |
| l1 = 0; |
| for (iy=0;iy<ny;iy++) |
| { |
| for (ix=0;ix<nx-1;ix++) |
| { |
| l2 = l1+1; |
| if (rmap[l1]!=rmap[l2]) |
| { |
| inv(pixels[l1]); |
| inv(pixels[l2]); |
| } |
| l1++; |
| } |
| l1++; |
| } |
| l1 = 0; |
| for (iy=0;iy<ny-1;iy++) |
| { |
| for (ix=0;ix<nx;ix++) |
| { |
| l2 = l1+nx; |
| if (rmap[l1]!=rmap[l2]) |
| { |
| inv(pixels[l1]); |
| inv(pixels[l2]); |
| } |
| l1++; |
| } |
| } |
| |
| |
| } |
| |