1 /********************************************************************** 2 * File: underlin.h (Formerly undrline.h) 3 * Description: Code to chop blobs apart from underlines. 4 * Author: Ray Smith 5 * 6 * (C) Copyright 1994, Hewlett-Packard Ltd. 7 ** Licensed under the Apache License, Version 2.0 (the "License"); 8 ** you may not use this file except in compliance with the License. 9 ** You may obtain a copy of the License at 10 ** http://www.apache.org/licenses/LICENSE-2.0 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 * 17 **********************************************************************/ 18 19 #ifndef UNDERLIN_H 20 #define UNDERLIN_H 21 22 #include "fpchop.h" 23 24 namespace tesseract { 25 26 extern double_VAR_H(textord_underline_offset); 27 extern BOOL_VAR_H(textord_restore_underlines); 28 void restore_underlined_blobs( // get chop points 29 TO_BLOCK *block // block to do 30 ); 31 TO_ROW *most_overlapping_row( // find best row 32 TO_ROW_LIST *rows, // list of rows 33 BLOBNBOX *blob // blob to place 34 ); 35 void find_underlined_blobs( // get chop points 36 BLOBNBOX *u_line, // underlined unit 37 QSPLINE *baseline, // actual baseline 38 float xheight, // height of line 39 float baseline_offset, // amount to shrinke it 40 ICOORDELT_LIST *chop_cells // places to chop 41 ); 42 void vertical_cunderline_projection( // project outlines 43 C_OUTLINE *outline, // outline to project 44 QSPLINE *baseline, // actual baseline 45 float xheight, // height of line 46 float baseline_offset, // amount to shrinke it 47 STATS *lower_proj, // below baseline 48 STATS *middle_proj, // centre region 49 STATS *upper_proj // top region 50 ); 51 52 } // namespace tesseract 53 54 #endif 55