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53 lines
2.8 KiB
C
53 lines
2.8 KiB
C
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/*====================================================================*
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- Copyright (C) 2001 Leptonica. All rights reserved.
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- This software is distributed in the hope that it will be
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- useful, but with NO WARRANTY OF ANY KIND.
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- No author or distributor accepts responsibility to anyone for the
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- consequences of using this software, or for whether it serves any
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- particular purpose or works at all, unless he or she says so in
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- writing. Everyone is granted permission to copy, modify and
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- redistribute this source code, for commercial or non-commercial
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- purposes, with the following restrictions: (1) the origin of this
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- source code must not be misrepresented; (2) modified versions must
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- be plainly marked as such; and (3) this notice may not be removed
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- or altered from any source or modified source distribution.
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*====================================================================*/
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#ifndef LEPTONICA_WATERSHED_H
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#define LEPTONICA_WATERSHED_H
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/*
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* watershed.h
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*
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* Simple data structure to hold watershed data.
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* All data here is owned by the L_WShed and must be freed.
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*/
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struct L_WShed
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{
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struct Pix *pixs; /* clone of input 8 bpp pixs */
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struct Pix *pixm; /* clone of input 1 bpp seed (marker) pixm */
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l_int32 mindepth; /* minimum depth allowed for a watershed */
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struct Pix *pixlab; /* 16 bpp label pix */
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struct Pix *pixt; /* scratch pix for computing wshed regions */
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void **lines8; /* line ptrs for pixs */
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void **linem1; /* line ptrs for pixm */
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void **linelab32; /* line ptrs for pixlab */
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void **linet1; /* line ptrs for pixt */
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struct Pixa *pixad; /* result: 1 bpp pixa of watersheds */
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struct Pta *ptas; /* pta of initial seed pixels */
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struct Numa *nasi; /* numa of seed indicators; 0 if completed */
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struct Numa *nash; /* numa of initial seed heights */
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struct Numa *namh; /* numa of initial minima heights */
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struct Numa *nalevels; /* result: numa of watershed levels */
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l_int32 nseeds; /* number of seeds (markers) */
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l_int32 nother; /* number of minima different from seeds */
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l_int32 *lut; /* lut for pixel indices */
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struct Numa **links; /* back-links into lut, for updates */
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l_int32 arraysize; /* size of links array */
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l_int32 debug; /* set to 1 for debug output */
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};
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typedef struct L_WShed L_WSHED;
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#endif /* LEPTONICA_WATERSHED_H */
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