tesseract
5.0.0-alpha-619-ge9db
intfx.h
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/******************************************************************************
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** Filename: intfx.h
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** Purpose: Interface to high level integer feature extractor.
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** Author: Robert Moss
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** History: Tue May 21 15:51:57 MDT 1991, RWM, Created.
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**
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** (c) Copyright Hewlett-Packard Company, 1988.
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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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#ifndef INTFX_H
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#define INTFX_H
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#include "
blobs.h
"
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#include "
intproto.h
"
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#include "
normalis.h
"
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#include <cmath>
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class
DENORM
;
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namespace
tesseract
{
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class
TrainingSample;
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}
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struct
INT_FX_RESULT_STRUCT
{
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int32_t
Length
;
// total length of all outlines
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int16_t
Xmean
,
Ymean
;
// center of mass of all outlines
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int16_t
Rx
,
Ry
;
// radius of gyration
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int16_t
NumBL
,
NumCN
;
// number of features extracted
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int16_t
Width
;
// Width of blob in BLN coords.
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uint8_t
YBottom
;
// Bottom of blob in BLN coords.
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uint8_t
YTop
;
// Top of blob in BLN coords.
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};
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// The standard feature length
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const
double
kStandardFeatureLength
= 64.0 / 5;
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void
InitIntegerFX
();
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// Returns a vector representing the direction of a feature with the given
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// theta direction in an INT_FEATURE_STRUCT.
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FCOORD
FeatureDirection
(uint8_t theta);
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namespace
tesseract
{
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// Generates a TrainingSample from a TBLOB. Extracts features and sets
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// the bounding box, so classifiers that operate on the image can work.
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// TODO(rays) BlobToTrainingSample must remain a global function until
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// the FlexFx and FeatureDescription code can be removed and LearnBlob
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// made a member of Classify.
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TrainingSample*
BlobToTrainingSample
(
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const
TBLOB
& blob,
bool
nonlinear_norm,
INT_FX_RESULT_STRUCT
* fx_info,
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GenericVector<INT_FEATURE_STRUCT>
* bl_features);
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}
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#endif
normalis.h
tesseract::BlobToTrainingSample
TrainingSample * BlobToTrainingSample(const TBLOB &blob, bool nonlinear_norm, INT_FX_RESULT_STRUCT *fx_info, GenericVector< INT_FEATURE_STRUCT > *bl_features)
Definition:
intfx.cpp:75
INT_FX_RESULT_STRUCT::NumBL
int16_t NumBL
Definition:
intfx.h:38
INT_FX_RESULT_STRUCT::YBottom
uint8_t YBottom
Definition:
intfx.h:40
INT_FX_RESULT_STRUCT
Definition:
intfx.h:34
INT_FX_RESULT_STRUCT::YTop
uint8_t YTop
Definition:
intfx.h:41
kStandardFeatureLength
const double kStandardFeatureLength
Definition:
intfx.h:45
FCOORD
Definition:
points.h:187
blobs.h
INT_FX_RESULT_STRUCT::Ry
int16_t Ry
Definition:
intfx.h:37
INT_FX_RESULT_STRUCT::Ymean
int16_t Ymean
Definition:
intfx.h:36
INT_FX_RESULT_STRUCT::Rx
int16_t Rx
Definition:
intfx.h:37
InitIntegerFX
void InitIntegerFX()
Definition:
intfx.cpp:48
INT_FX_RESULT_STRUCT::NumCN
int16_t NumCN
Definition:
intfx.h:38
tesseract
Definition:
baseapi.h:65
INT_FX_RESULT_STRUCT::Xmean
int16_t Xmean
Definition:
intfx.h:36
GenericVector
Definition:
baseapi.h:40
INT_FX_RESULT_STRUCT::Width
int16_t Width
Definition:
intfx.h:39
TBLOB
Definition:
blobs.h:282
INT_FX_RESULT_STRUCT::Length
int32_t Length
Definition:
intfx.h:35
FeatureDirection
FCOORD FeatureDirection(uint8_t theta)
Definition:
intfx.cpp:64
intproto.h
DENORM
Definition:
normalis.h:49
src
classify
intfx.h
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