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425d593ebe
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk/trunk@2 d0cd1f9f-072b-0410-8dd7-cf729c803f20
154 lines
4.4 KiB
C
154 lines
4.4 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 chop_enable;
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extern int chop_debug;
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extern int same_distance;
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extern int split_length;
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extern float center_knob;
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extern float overlap_knob;
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extern float split_dist_knob;
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extern float width_change_knob;
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extern float sharpness_knob;
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extern int min_outline_area;
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extern int min_outline_points;
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extern float good_split;
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extern float ok_split;
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extern int chop_enable;
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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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void init_chop();
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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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/*
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#if defined(__STDC__) || defined(__cplusplus)
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# define _ARGS(s) s
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#else
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# define _ARGS(s) ()
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#endif*/
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/* chop.c
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PRIORITY point_priority
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_ARGS((EDGEPT *point));
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void add_point_to_list
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_ARGS((POINT_GROUP point_list,
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EDGEPT *point));
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SEAM *create_split
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_ARGS((BLOB *blob,
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POINT_GROUP points));
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SPLIT *extended_split
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_ARGS((INT32 location,
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EDGEPT *starting_point));
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SEAM *get_best_pair
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_ARGS((SPLIT_GROUP split_queue,
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BLOB *blob));
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void init_chop
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_ARGS((void));
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EDGEPT *pick_close_point
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_ARGS((EDGEPT *critical_point,
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EDGEPT *vertical_point,
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int *best_dist));
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void prioritize_points
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_ARGS((TESSLINE *outline,
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POINT_GROUP points));
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void new_min_point
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_ARGS((EDGEPT *local_min,
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POINT_GROUP points));
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void new_max_point
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_ARGS((EDGEPT *local_max,
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POINT_GROUP points));
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EDGEPT *vertical_projection_point
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_ARGS((EDGEPT *split_point,
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EDGEPT *target_point));
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#undef _ARGS
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*/
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#endif
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