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git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@650 d0cd1f9f-072b-0410-8dd7-cf729c803f20
79 lines
2.9 KiB
C++
79 lines
2.9 KiB
C++
/******************************************************************************
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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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/**----------------------------------------------------------------------------
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Include Files and Type Defines
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----------------------------------------------------------------------------**/
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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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/**----------------------------------------------------------------------------
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Public Function Prototypes
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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
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