/ocr/ocrservice/jni/hydrogen/include/leptonica/watershed.h

 1/*====================================================================*
 2 -  Copyright (C) 2001 Leptonica.  All rights reserved.
 3 -  This software is distributed in the hope that it will be
 4 -  useful, but with NO WARRANTY OF ANY KIND.
 5 -  No author or distributor accepts responsibility to anyone for the
 6 -  consequences of using this software, or for whether it serves any
 7 -  particular purpose or works at all, unless he or she says so in
 8 -  writing.  Everyone is granted permission to copy, modify and
 9 -  redistribute this source code, for commercial or non-commercial
10 -  purposes, with the following restrictions: (1) the origin of this
11 -  source code must not be misrepresented; (2) modified versions must
12 -  be plainly marked as such; and (3) this notice may not be removed
13 -  or altered from any source or modified source distribution.
14 *====================================================================*/
15
16#ifndef  LEPTONICA_WATERSHED_H
17#define  LEPTONICA_WATERSHED_H
18
19/* 
20 *  watershed.h
21 *
22 *     Simple data structure to hold watershed data.
23 *     All data here is owned by the L_WShed and must be freed.
24 */
25
26struct L_WShed 
27{
28    struct Pix    *pixs;        /* clone of input 8 bpp pixs                */
29    struct Pix    *pixm;        /* clone of input 1 bpp seed (marker) pixm  */
30    l_int32        mindepth;    /* minimum depth allowed for a watershed    */
31    struct Pix    *pixlab;      /* 16 bpp label pix                         */
32    struct Pix    *pixt;        /* scratch pix for computing wshed regions  */
33    void         **lines8;      /* line ptrs for pixs                       */
34    void         **linem1;      /* line ptrs for pixm                       */
35    void         **linelab32;   /* line ptrs for pixlab                     */
36    void         **linet1;      /* line ptrs for pixt                       */
37    struct Pixa   *pixad;       /* result: 1 bpp pixa of watersheds         */
38    struct Pta    *ptas;        /* pta of initial seed pixels               */
39    struct Numa   *nasi;        /* numa of seed indicators; 0 if completed  */
40    struct Numa   *nash;        /* numa of initial seed heights             */
41    struct Numa   *namh;        /* numa of initial minima heights           */
42    struct Numa   *nalevels;    /* result: numa of watershed levels         */
43    l_int32        nseeds;      /* number of seeds (markers)                */
44    l_int32        nother;      /* number of minima different from seeds    */
45    l_int32       *lut;         /* lut for pixel indices                    */
46    struct Numa  **links;       /* back-links into lut, for updates         */
47    l_int32        arraysize;   /* size of links array                      */
48    l_int32        debug;       /* set to 1 for debug output                */
49};
50typedef struct L_WShed L_WSHED;
51
52#endif  /* LEPTONICA_WATERSHED_H */