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https://github.com/tesseract-ocr/tesseract.git
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23b29fbe9a
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@535 d0cd1f9f-072b-0410-8dd7-cf729c803f20
103 lines
3.5 KiB
C++
103 lines
3.5 KiB
C++
/* -*-C-*-
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********************************************************************************
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*
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* File: olutil.c (Formerly olutil.c)
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* Description:
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* Author: Mark Seaman, OCR Technology
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* Created: Fri Oct 16 14:37:00 1987
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* Modified: Fri May 17 13:11:24 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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/*----------------------------------------------------------------------
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I n c l u d e s
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----------------------------------------------------------------------*/
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#include "olutil.h"
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#include "structures.h"
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#include "blobs.h"
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#include "const.h"
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#ifdef __UNIX__
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#include <assert.h>
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#endif
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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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/**********************************************************************
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* correct_blob_order
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*
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* Check to see if the blobs are in the correct order. If they are not
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* then swap which outlines are attached to which blobs.
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**********************************************************************/
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void correct_blob_order(TBLOB *blob1, TBLOB *blob2) {
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TPOINT origin1;
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TPOINT origin2;
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TESSLINE *temp;
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blob_origin(blob1, &origin1);
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blob_origin(blob2, &origin2);
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if (origin1.x > origin2.x) {
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temp = blob2->outlines;
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blob2->outlines = blob1->outlines;
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blob1->outlines = temp;
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}
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}
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/**********************************************************************
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* eliminate_duplicate_outlines
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*
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* Find and delete any duplicate outline records in this blob.
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**********************************************************************/
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void eliminate_duplicate_outlines(TBLOB *blob) {
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TESSLINE *outline;
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TESSLINE *other_outline;
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TESSLINE *last_outline;
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for (outline = blob->outlines; outline; outline = outline->next) {
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for (last_outline = outline, other_outline = outline->next;
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other_outline;
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last_outline = other_outline, other_outline = other_outline->next) {
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if (same_outline_bounds (outline, other_outline)) {
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last_outline->next = other_outline->next;
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// This doesn't leak - the outlines share the EDGEPTs.
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other_outline->loop = NULL;
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delete other_outline;
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other_outline = last_outline;
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// If it is part of a cut, then it can't be a hole any more.
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outline->is_hole = false;
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}
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}
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}
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}
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/**********************************************************************
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* setup_blob_outlines
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*
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* Set up each of the outlines in this blob.
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**********************************************************************/
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void setup_blob_outlines(TBLOB *blob) {
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TESSLINE *outline;
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for (outline = blob->outlines; outline; outline = outline->next) {
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outline->ComputeBoundingBox();
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}
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}
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