| 1 | /* |
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| 2 | * commin.h: common stuff |
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| 3 | * $Id: common.h 392 2005-01-03 23:26:29Z sam $ |
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| 4 | * |
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| 5 | * Copyright: (c) 2004 Sam Hocevar <sam@zoy.org> |
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| 6 | * This program is free software; you can redistribute it and/or |
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| 7 | * modify it under the terms of the Do What The Fuck You Want To |
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| 8 | * Public License as published by Banlu Kemiyatorn. See |
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| 9 | * http://sam.zoy.org/projects/COPYING.WTFPL for more details. |
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| 10 | */ |
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| 11 | |
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| 12 | /* image structure */ |
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| 13 | struct image |
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| 14 | { |
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| 15 | int width, height, pitch, channels; |
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| 16 | unsigned char *pixels; |
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| 17 | void *priv; |
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| 18 | }; |
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| 19 | |
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| 20 | /* debug function */ |
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| 21 | void dprintf(const char *fmt, ...); |
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| 22 | |
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| 23 | /* available CAPTCHA decoders */ |
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| 24 | char *decode_phpbb(struct image *img); |
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| 25 | char *decode_slashdot(struct image *img); |
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| 26 | char *decode_test(struct image *img); |
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| 27 | |
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| 28 | /* image operations */ |
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| 29 | struct image *image_load(char *name); |
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| 30 | struct image *image_new(int width, int height); |
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| 31 | void image_free(struct image *img); |
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| 32 | void image_display(struct image *img); |
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| 33 | int getgray(struct image *img, int x, int y, int *g); |
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| 34 | int getpixel(struct image *img, int x, int y, int *r, int *g, int *b); |
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| 35 | int setpixel(struct image *img, int x, int y, int r, int g, int b); |
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| 36 | |
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| 37 | /* image filters */ |
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| 38 | void filter_flood_fill(struct image *img, int x, int y, int r, int g, int b); |
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| 39 | struct image *filter_fill_holes(struct image *img); |
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| 40 | struct image *filter_detect_lines(struct image *img); |
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| 41 | struct image *filter_equalize(struct image *img, int threshold); |
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| 42 | struct image *filter_trick(struct image *img); |
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| 43 | struct image *filter_smooth(struct image *img); |
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| 44 | struct image *filter_median(struct image *img); |
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| 45 | struct image *filter_contrast(struct image *img); |
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| 46 | |
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