Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/tesseract/src/textord/edgblob.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
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /**********************************************************************
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2 * File: edgblob.h (Formerly edgeloop.h)
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3 * Description: Functions to clean up an outline before approximation.
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4 * Author: Ray Smith
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5 *
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6 * (C) Copyright 1991, Hewlett-Packard Ltd.
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7 ** Licensed under the Apache License, Version 2.0 (the "License");
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8 ** you may not use this file except in compliance with the License.
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9 ** You may obtain a copy of the License at
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10 ** http://www.apache.org/licenses/LICENSE-2.0
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11 ** Unless required by applicable law or agreed to in writing, software
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12 ** distributed under the License is distributed on an "AS IS" BASIS,
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13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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14 ** See the License for the specific language governing permissions and
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15 ** limitations under the License.
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16 *
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17 **********************************************************************/
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19 #ifndef EDGBLOB_H
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20 #define EDGBLOB_H
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22 #include "coutln.h" // for C_OUTLINE
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23 #include "ocrblock.h" // for BLOCK
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24 #include "points.h" // for ICOORD
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26 #include <vector>
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28 namespace tesseract {
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30 class OL_BUCKETS {
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31 public:
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32 OL_BUCKETS( // constructor
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33 ICOORD bleft, // corners
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34 ICOORD tright);
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36 C_OUTLINE_LIST *operator()( // array access
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37 TDimension x, // image coords
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38 TDimension y);
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39 // first non-empty bucket
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40 C_OUTLINE_LIST *start_scan();
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41 // next non-empty bucket
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42 C_OUTLINE_LIST *scan_next();
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43 int32_t count_children( // recursive sum
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44 C_OUTLINE *outline, // parent outline
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45 int32_t max_count); // max output
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46 int32_t outline_complexity( // new version of count_children
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47 C_OUTLINE *outline, // parent outline
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48 int32_t max_count, // max output
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49 int16_t depth); // level of recursion
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50 void extract_children( // single level get
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51 C_OUTLINE *outline, // parent outline
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52 C_OUTLINE_IT *it); // destination iterator
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54 private:
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55 int16_t bxdim; // size of array
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56 int16_t bydim;
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57 std::vector<C_OUTLINE_LIST> buckets; // array of buckets
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58 ICOORD bl; // corners
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59 ICOORD tr;
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60 decltype(buckets)::iterator it; // for extraction scan
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62 C_OUTLINE_LIST *scan_next(decltype(buckets)::iterator it);
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63 };
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65 void extract_edges(Image pix, // thresholded image
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66 BLOCK *block); // block to scan
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67 void outlines_to_blobs( // find blobs
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68 BLOCK *block, // block to scan
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69 ICOORD bleft, // block box //outlines in block
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70 ICOORD tright, C_OUTLINE_LIST *outlines);
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72 } // namespace tesseract
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74 #endif