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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
103 lines
3.8 KiB
C
103 lines
3.8 KiB
C
/* -*-C-*-
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********************************************************************************
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*
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* File: olutil.h (Formerly olutil.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 14:21:55 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 OLUTIL_H
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#define OLUTIL_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 "tessclas.h"
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#include "general.h"
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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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* is_inside_angle
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*
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* Return true if the edgept supplied as input is an inside angle. This
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* is determined by the angular change of the vectors from point to
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* point.
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**********************************************************************/
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#define is_inside_angle(pt) \
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(angle_change ((pt)->prev, (pt), (pt)->next) < chop_inside_angle)
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/**********************************************************************
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* point_in_outline
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*
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* Check to see if this point falls within the bounding box of this
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* outline. Note that this does not totally ensure that the edge
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* point falls on this outline.
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**********************************************************************/
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#define point_in_outline(p,o) \
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((p)->pos.x >= (o)->topleft.x && \
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(p)->pos.y <= (o)->topleft.y && \
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(p)->pos.x <= (o)->botright.x && \
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(p)->pos.y >= (o)->botright.y) \
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/**********************************************************************
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* same_outline_bounds
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*
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* Return TRUE if these two outlines have the same bounds.
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**********************************************************************/
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#define same_outline_bounds(outline,other_outline) \
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(outline->topleft.x == other_outline->topleft.x && \
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outline->topleft.y == other_outline->topleft.y && \
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outline->botright.x == other_outline->botright.x && \
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outline->botright.y == other_outline->botright.y) \
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/**********************************************************************
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* weighted_edgept_dist
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*
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* Return the distance (squared) between the two edge points.
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**********************************************************************/
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#define weighted_edgept_dist(p1,p2,chop_x_y_weight) \
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(((p1)->pos.x - (p2)->pos.x) * \
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((p1)->pos.x - (p2)->pos.x) * chop_x_y_weight + \
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((p1)->pos.y - (p2)->pos.y) * \
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((p1)->pos.y - (p2)->pos.y))
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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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void check_outline_mem();
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void correct_blob_order(TBLOB *blob1, TBLOB *blob2);
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void eliminate_duplicate_outlines(TBLOB *blob);
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void setup_outline(TESSLINE *outline);
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void setup_blob_outlines(TBLOB *blob);
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#endif
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