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intfx.h
Go to the documentation of this file.
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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 <math.h>
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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
Length
;
// total length of all outlines
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inT16
Xmean
,
Ymean
;
// center of mass of all outlines
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inT16
Rx
,
Ry
;
// radius of gyration
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inT16
NumBL
,
NumCN
;
// number of features extracted
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inT16
Width
;
// Width of blob in BLN coords.
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uinT8
YBottom
;
// Bottom of blob in BLN coords.
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uinT8
YTop
;
// Top of blob in BLN coords.
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};
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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
theta);
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tesseract::TrainingSample
*
GetIntFeatures
(
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tesseract::NormalizationMode
mode
,
TBLOB
*blob,
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const
DENORM
& denorm);
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int
ExtractIntFeat
(
TBLOB
*Blob,
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const
DENORM
& denorm,
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INT_FEATURE_ARRAY
BLFeat,
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INT_FEATURE_ARRAY
CNFeat,
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INT_FX_RESULT_STRUCT
* Results,
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inT32
*FeatureOutlineArray = 0);
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uinT8
BinaryAnglePlusPi
(
inT32
Y,
inT32
X);
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int
SaveFeature
(
INT_FEATURE_ARRAY
FeatureArray,
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uinT16
FeatureNum,
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inT16
X,
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inT16
Y,
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uinT8
Theta);
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uinT16
MySqrt
(
inT32
X,
inT32
Y);
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uinT8
MySqrt2
(
uinT16
N,
uinT32
I,
uinT8
*Exp);
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void
ClipRadius
(
uinT8
*RxInv,
uinT8
*RxExp,
uinT8
*RyInv,
uinT8
*RyExp);
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#endif
mnt
data
src
tesseract-ocr
classify
intfx.h
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