mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-12-20 04:28:46 +08:00
425d593ebe
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk/trunk@2 d0cd1f9f-072b-0410-8dd7-cf729c803f20
77 lines
2.8 KiB
C++
77 lines
2.8 KiB
C++
/**********************************************************************
|
|
* File: blobcmp.c (Formerly blobcmp.c)
|
|
* Description: Code to compare blobs using the adaptive matcher.
|
|
* Author: Ray Smith
|
|
* Created: Wed Apr 21 09:28:51 BST 1993
|
|
*
|
|
* (C) Copyright 1993, Hewlett-Packard Ltd.
|
|
** 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.
|
|
*
|
|
**********************************************************************/
|
|
|
|
#include "mfcpch.h"
|
|
#include "fxdefs.h"
|
|
#include "ocrfeatures.h"
|
|
#include "intmatcher.h"
|
|
#include "intproto.h"
|
|
#include "adaptive.h"
|
|
#include "adaptmatch.h"
|
|
#include "const.h"
|
|
#include "tessvars.h"
|
|
|
|
#define CMP_CLASS 'x'
|
|
|
|
/**********************************************************************
|
|
* compare_tess_blobs
|
|
*
|
|
* Match 2 blobs using the adaptive classifier.
|
|
**********************************************************************/
|
|
float compare_tess_blobs(TBLOB *blob1,
|
|
TEXTROW *row1,
|
|
TBLOB *blob2,
|
|
TEXTROW *row2) {
|
|
int fcount; /*number of features */
|
|
ADAPT_TEMPLATES ad_templates;
|
|
LINE_STATS line_stats1, line_stats2;
|
|
INT_FEATURE_ARRAY int_features;
|
|
FEATURE_SET float_features;
|
|
INT_RESULT_STRUCT int_result; /*output */
|
|
|
|
BIT_VECTOR AllProtosOn = NewBitVector (MAX_NUM_PROTOS);
|
|
BIT_VECTOR AllConfigsOn = NewBitVector (MAX_NUM_CONFIGS);
|
|
set_all_bits (AllProtosOn, WordsInVectorOfSize (MAX_NUM_PROTOS));
|
|
set_all_bits (AllConfigsOn, WordsInVectorOfSize (MAX_NUM_CONFIGS));
|
|
|
|
EnterClassifyMode;
|
|
ad_templates = NewAdaptedTemplates ();
|
|
GetLineStatsFromRow(row1, &line_stats1);
|
|
/*copy baseline stuff */
|
|
GetLineStatsFromRow(row2, &line_stats2);
|
|
MakeNewAdaptedClass(blob1, &line_stats1, CMP_CLASS, ad_templates);
|
|
fcount = GetAdaptiveFeatures (blob2, &line_stats2,
|
|
int_features, &float_features);
|
|
if (fcount > 0) {
|
|
SetBaseLineMatch();
|
|
IntegerMatcher (ClassForClassId (ad_templates->Templates, CMP_CLASS),
|
|
AllProtosOn, AllConfigsOn, fcount, fcount,
|
|
int_features, 0, 0, &int_result, testedit_match_debug);
|
|
FreeFeatureSet(float_features);
|
|
if (int_result.Rating < 0)
|
|
int_result.Rating = MAX_FLOAT32;
|
|
}
|
|
|
|
free_adapted_templates(ad_templates);
|
|
FreeBitVector(AllConfigsOn);
|
|
FreeBitVector(AllProtosOn);
|
|
|
|
return fcount > 0 ? int_result.Rating * fcount : MAX_FLOAT32;
|
|
}
|