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annotate mupdf-source/thirdparty/leptonica/src/watershed.h @ 46:7ee69f120f19 default tip

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>>>>> tag v1.26.5+1 for changeset b74429b0f5c4
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 17:17:30 +0200
parents b50eed0cc0ef
children
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1 /*====================================================================*
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2 - Copyright (C) 2001 Leptonica. All rights reserved.
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3 -
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4 - Redistribution and use in source and binary forms, with or without
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5 - modification, are permitted provided that the following conditions
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6 - are met:
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7 - 1. Redistributions of source code must retain the above copyright
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8 - notice, this list of conditions and the following disclaimer.
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9 - 2. Redistributions in binary form must reproduce the above
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10 - copyright notice, this list of conditions and the following
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11 - disclaimer in the documentation and/or other materials
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12 - provided with the distribution.
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13 -
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14 - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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15 - ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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16 - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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17 - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY
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18 - CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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19 - EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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20 - PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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21 - PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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22 - OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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23 - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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24 - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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25 *====================================================================*/
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27 #ifndef LEPTONICA_WATERSHED_H
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28 #define LEPTONICA_WATERSHED_H
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30 /*!
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31 * \file watershed.h
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32 *
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33 * Simple data structure to hold watershed data.
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34 * All data here is owned by the L_WShed and must be freed.
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35 */
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37 /*! Simple data structure to hold watershed data. */
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38 struct L_WShed
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39 {
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40 struct Pix *pixs; /*!< clone of input 8 bpp pixs */
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41 struct Pix *pixm; /*!< clone of input 1 bpp seed (marker) pixm */
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42 l_int32 mindepth; /*!< minimum depth allowed for a watershed */
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43 struct Pix *pixlab; /*!< 16 bpp label pix */
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44 struct Pix *pixt; /*!< scratch pix for computing wshed regions */
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45 void **lines8; /*!< line ptrs for pixs */
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46 void **linem1; /*!< line ptrs for pixm */
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47 void **linelab32; /*!< line ptrs for pixlab */
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48 void **linet1; /*!< line ptrs for pixt */
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49 struct Pixa *pixad; /*!< result: 1 bpp pixa of watersheds */
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50 struct Pta *ptas; /*!< pta of initial seed pixels */
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51 struct Numa *nasi; /*!< numa of seed indicators; 0 if completed */
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52 struct Numa *nash; /*!< numa of initial seed heights */
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53 struct Numa *namh; /*!< numa of initial minima heights */
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54 struct Numa *nalevels; /*!< result: numa of watershed levels */
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55 l_int32 nseeds; /*!< number of seeds (markers) */
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56 l_int32 nother; /*!< number of minima different from seeds */
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57 l_int32 *lut; /*!< lut for pixel indices */
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58 struct Numa **links; /*!< back-links into lut, for updates */
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59 l_int32 arraysize; /*!< size of links array */
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60 l_int32 debug; /*!< set to 1 for debug output */
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61 };
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62 typedef struct L_WShed L_WSHED;
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64 #endif /* LEPTONICA_WATERSHED_H */