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- /*====================================================================*
- - Copyright (C) 2001 Leptonica. All rights reserved.
- -
- - Redistribution and use in source and binary forms, with or without
- - modification, are permitted provided that the following conditions
- - are met:
- - 1. Redistributions of source code must retain the above copyright
- - notice, this list of conditions and the following disclaimer.
- - 2. Redistributions in binary form must reproduce the above
- - copyright notice, this list of conditions and the following
- - disclaimer in the documentation and/or other materials
- - provided with the distribution.
- -
- - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- - ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY
- - CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- - EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- - PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- - PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- - OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *====================================================================*/
- #ifndef LEPTONICA_WATERSHED_H
- #define LEPTONICA_WATERSHED_H
- /*
- * watershed.h
- *
- * Simple data structure to hold watershed data.
- * All data here is owned by the L_WShed and must be freed.
- */
- struct L_WShed
- {
- struct Pix *pixs; /* clone of input 8 bpp pixs */
- struct Pix *pixm; /* clone of input 1 bpp seed (marker) pixm */
- l_int32 mindepth; /* minimum depth allowed for a watershed */
- struct Pix *pixlab; /* 16 bpp label pix */
- struct Pix *pixt; /* scratch pix for computing wshed regions */
- void **lines8; /* line ptrs for pixs */
- void **linem1; /* line ptrs for pixm */
- void **linelab32; /* line ptrs for pixlab */
- void **linet1; /* line ptrs for pixt */
- struct Pixa *pixad; /* result: 1 bpp pixa of watersheds */
- struct Pta *ptas; /* pta of initial seed pixels */
- struct Numa *nasi; /* numa of seed indicators; 0 if completed */
- struct Numa *nash; /* numa of initial seed heights */
- struct Numa *namh; /* numa of initial minima heights */
- struct Numa *nalevels; /* result: numa of watershed levels */
- l_int32 nseeds; /* number of seeds (markers) */
- l_int32 nother; /* number of minima different from seeds */
- l_int32 *lut; /* lut for pixel indices */
- struct Numa **links; /* back-links into lut, for updates */
- l_int32 arraysize; /* size of links array */
- l_int32 debug; /* set to 1 for debug output */
- };
- typedef struct L_WShed L_WSHED;
- #endif /* LEPTONICA_WATERSHED_H */
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