twain3.0/3rdparty/hgOCR/leptonica/watershed.h

65 lines
3.4 KiB
C

/*====================================================================*
- 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
/*!
* \file watershed.h
*
* Simple data structure to hold watershed data.
* All data here is owned by the L_WShed and must be freed.
*/
/*! Simple data structure to hold watershed data. */
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 */