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https://github.com/tesseract-ocr/tesseract.git
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b47efd2cc4
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@304 d0cd1f9f-072b-0410-8dd7-cf729c803f20
117 lines
4.2 KiB
C
117 lines
4.2 KiB
C
/* -*-C-*-
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********************************************************************************
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*
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* File: chop.h (Formerly chop.h)
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* Description:
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* Author: Mark Seaman, SW Productivity
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* Created: Fri Oct 16 14:37:00 1987
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* Modified: Wed Jul 10 14:47:37 1991 (Mark Seaman) marks@hpgrlt
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* Language: C
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* Package: N/A
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* Status: Reusable Software Component
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*
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* (c) Copyright 1987, Hewlett-Packard Company.
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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** http://www.apache.org/licenses/LICENSE-2.0
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*
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*******************************************************************************/
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#ifndef CHOP_H
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#define CHOP_H
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/*----------------------------------------------------------------------
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I n c l u d e s
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----------------------------------------------------------------------*/
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#include "oldheap.h"
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#include "seam.h"
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/*----------------------------------------------------------------------
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T y p e s
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---------------------------------------------------------------------*/
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#define MAX_NUM_POINTS 50
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typedef HEAP *POINT_GROUP;
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typedef HEAP *SPLIT_GROUP;
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/*----------------------------------------------------------------------
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V a r i a b l e s
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----------------------------------------------------------------------*/
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extern INT_VAR_H(chop_debug, 0, "Chop debug");
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extern BOOL_VAR_H(chop_enable, 1, "Chop enable");
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extern BOOL_VAR_H(chop_vertical_creep, 0, "Vertical creep");
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extern INT_VAR_H(chop_split_length, 10000, "Split Length");
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extern INT_VAR_H(chop_same_distance, 2, "Same distance");
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extern INT_VAR_H(chop_min_outline_points, 6,
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"Min Number of Points on Outline");
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extern INT_VAR_H(chop_inside_angle, -50, "Min Inside Angle Bend");
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extern INT_VAR_H(chop_min_outline_area, 2000, "Min Outline Area");
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extern double_VAR_H(chop_split_dist_knob, 0.5, "Split length adjustment");
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extern double_VAR_H(chop_overlap_knob, 0.9, "Split overlap adjustment");
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extern double_VAR_H(chop_center_knob, 0.15, "Split center adjustment");
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extern double_VAR_H(chop_sharpness_knob, 0.06, "Split sharpness adjustment");
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extern double_VAR_H(chop_width_change_knob, 5.0, "Width change adjustment");
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extern double_VAR_H(chop_ok_split, 100.0, "OK split limit");
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extern double_VAR_H(chop_good_split, 50.0, "Good split limit");
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extern INT_VAR_H(chop_x_y_weight, 3, "X / Y length weight");
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/*----------------------------------------------------------------------
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M a c r o s
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----------------------------------------------------------------------*/
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/**********************************************************************
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* point_bend_angle
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*
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* Measure the angle of bend at this edge point. The argument should
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* be of type EDGEPT.
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**********************************************************************/
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#define point_bend_angle(point) \
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(angle_change ((point)->prev, (point), (point)->next))
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/*----------------------------------------------------------------------
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F u n c t i o n s
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----------------------------------------------------------------------*/
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PRIORITY point_priority(EDGEPT *point);
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void add_point_to_list(POINT_GROUP point_list, EDGEPT *point);
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int angle_change(EDGEPT *point1, EDGEPT *point2, EDGEPT *point3);
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int is_little_chunk(EDGEPT *point1, EDGEPT *point2);
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int is_small_area(EDGEPT *point1, EDGEPT *point2);
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EDGEPT *pick_close_point(EDGEPT *critical_point,
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EDGEPT *vertical_point,
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int *best_dist);
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void prioritize_points(TESSLINE *outline, POINT_GROUP points);
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void new_min_point(EDGEPT *local_min, POINT_GROUP points);
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void new_max_point(EDGEPT *local_max, POINT_GROUP points);
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void vertical_projection_point(EDGEPT *split_point, EDGEPT *target_point,
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EDGEPT** best_point);
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#endif
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