Mercurial > hgrepos > Python2 > PyMuPDF
diff mupdf-source/thirdparty/tesseract/src/wordrec/gradechop.cpp @ 2:b50eed0cc0ef upstream
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
The directory name has changed: no version number in the expanded directory now.
| author | Franz Glasner <fzglas.hg@dom66.de> |
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| date | Mon, 15 Sep 2025 11:43:07 +0200 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mupdf-source/thirdparty/tesseract/src/wordrec/gradechop.cpp Mon Sep 15 11:43:07 2025 +0200 @@ -0,0 +1,83 @@ +/****************************************************************************** + * + * File: gradechop.cpp (Formerly gradechop.c) + * Description: + * Author: Mark Seaman, OCR Technology + * + * (c) Copyright 1987, Hewlett-Packard Company. + ** Licensed under the Apache License, Version 2.0 (the "License"); + ** you may not use this file except in compliance with the License. + ** You may obtain a copy of the License at + ** http://www.apache.org/licenses/LICENSE-2.0 + ** Unless required by applicable law or agreed to in writing, software + ** distributed under the License is distributed on an "AS IS" BASIS, + ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + ** See the License for the specific language governing permissions and + ** limitations under the License. + * + *****************************************************************************/ +/*---------------------------------------------------------------------- + I n c l u d e s +----------------------------------------------------------------------*/ + +#include <algorithm> +#include <cmath> +#include "chop.h" +#include "wordrec.h" + +/*---------------------------------------------------------------------- + M a c r o s +----------------------------------------------------------------------*/ + +namespace tesseract { + +/*---------------------------------------------------------------------- + F u n c t i o n s +----------------------------------------------------------------------*/ + +/********************************************************************** + * grade_split_length + * + * Return a grade for the length of this split. + * 0 = "perfect" + * 100 = "no way jay" + **********************************************************************/ +PRIORITY Wordrec::grade_split_length(SPLIT *split) { + PRIORITY grade; + float split_length; + + split_length = split->point1->WeightedDistance(*split->point2, chop_x_y_weight); + + if (split_length <= 0) { + grade = 0; + } else { + grade = std::sqrt(split_length) * chop_split_dist_knob; + } + + return (std::max(0.0f, grade)); +} + +/********************************************************************** + * grade_sharpness + * + * Return a grade for the sharpness of this split. + * 0 = "perfect" + * 100 = "no way jay" + **********************************************************************/ +PRIORITY Wordrec::grade_sharpness(SPLIT *split) { + PRIORITY grade; + + grade = point_priority(split->point1) + point_priority(split->point2); + + if (grade < -360.0) { + grade = 0; + } else { + grade += 360.0; + } + + grade *= chop_sharpness_knob; /* Values 0 to -360 */ + + return (grade); +} + +} // namespace tesseract
