mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-12-18 11:28:51 +08:00
425d593ebe
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk/trunk@2 d0cd1f9f-072b-0410-8dd7-cf729c803f20
129 lines
4.2 KiB
C
129 lines
4.2 KiB
C
/* -*-C-*-
|
|
********************************************************************************
|
|
*
|
|
* File: olutil.h (Formerly olutil.h)
|
|
* Description:
|
|
* Author: Mark Seaman, SW Productivity
|
|
* Created: Fri Oct 16 14:37:00 1987
|
|
* Modified: Wed Jul 10 14:21:55 1991 (Mark Seaman) marks@hpgrlt
|
|
* Language: C
|
|
* Package: N/A
|
|
* Status: Reusable Software Component
|
|
*
|
|
* (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.
|
|
*
|
|
*********************************************************************************/
|
|
#ifndef OLUTIL_H
|
|
#define OLUTIL_H
|
|
|
|
/*----------------------------------------------------------------------
|
|
I n c l u d e s
|
|
----------------------------------------------------------------------*/
|
|
#include "tessclas.h"
|
|
#include "general.h"
|
|
|
|
/*----------------------------------------------------------------------
|
|
M a c r o s
|
|
----------------------------------------------------------------------*/
|
|
/**********************************************************************
|
|
* is_inside_angle
|
|
*
|
|
* Return true if the edgept supplied as input is an inside angle. This
|
|
* is determined by the angular change of the vectors from point to
|
|
* point.
|
|
|
|
**********************************************************************/
|
|
|
|
#define is_inside_angle(pt) \
|
|
(angle_change ((pt)->prev, (pt), (pt)->next) < inside_angle)
|
|
|
|
/**********************************************************************
|
|
* point_in_outline
|
|
*
|
|
* Check to see if this point falls within the bounding box of this
|
|
* outline. Note that this does not totally ensure that the edge
|
|
* point falls on this outline.
|
|
**********************************************************************/
|
|
|
|
#define point_in_outline(p,o) \
|
|
((p)->pos.x >= (o)->topleft.x && \
|
|
(p)->pos.y <= (o)->topleft.y && \
|
|
(p)->pos.x <= (o)->botright.x && \
|
|
(p)->pos.y >= (o)->botright.y) \
|
|
|
|
|
|
/**********************************************************************
|
|
* same_outline_bounds
|
|
*
|
|
* Return TRUE if these two outlines have the same bounds.
|
|
**********************************************************************/
|
|
|
|
#define same_outline_bounds(outline,other_outline) \
|
|
(outline->topleft.x == other_outline->topleft.x && \
|
|
outline->topleft.y == other_outline->topleft.y && \
|
|
outline->botright.x == other_outline->botright.x && \
|
|
outline->botright.y == other_outline->botright.y) \
|
|
|
|
|
|
/**********************************************************************
|
|
* weighted_edgept_dist
|
|
*
|
|
* Return the distance (squared) between the two edge points.
|
|
**********************************************************************/
|
|
|
|
#define weighted_edgept_dist(p1,p2,x_y_weight) \
|
|
(((p1)->pos.x - (p2)->pos.x) * \
|
|
((p1)->pos.x - (p2)->pos.x) * x_y_weight + \
|
|
((p1)->pos.y - (p2)->pos.y) * \
|
|
((p1)->pos.y - (p2)->pos.y))
|
|
|
|
/*----------------------------------------------------------------------
|
|
F u n c t i o n s
|
|
----------------------------------------------------------------------*/
|
|
void check_outline_mem();
|
|
|
|
void correct_blob_order(TBLOB *blob1, TBLOB *blob2);
|
|
|
|
void eliminate_duplicate_outlines(TBLOB *blob);
|
|
|
|
void setup_outline(TESSLINE *outline);
|
|
|
|
void setup_blob_outlines(TBLOB *blob);
|
|
|
|
/*
|
|
#if defined(__STDC__) || defined(__cplusplus)
|
|
# define _ARGS(s) s
|
|
#else
|
|
# define _ARGS(s) ()
|
|
#endif*/
|
|
|
|
/* olutil.c
|
|
void check_outline_mem
|
|
_ARGS((void));
|
|
|
|
void correct_blob_order
|
|
_ARGS((BLOB *blob1,
|
|
BLOB *blob2));
|
|
|
|
void eliminate_duplicate_outlines
|
|
_ARGS((BLOB *blob));
|
|
|
|
void setup_outline
|
|
_ARGS((TESSLINE *outline));
|
|
|
|
void setup_blob_outlines
|
|
_ARGS((BLOB *blob));
|
|
|
|
#undef _ARGS
|
|
*/
|
|
#endif
|