mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-12-12 07:29:07 +08:00
3dcab4e187
It was deprecated with commit 99edf4ccb four years ago.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
69 lines
2.8 KiB
C++
69 lines
2.8 KiB
C++
/******************************************************************************
|
|
** Filename: intfx.h
|
|
** Purpose: Interface to high level integer feature extractor.
|
|
** Author: Robert Moss
|
|
** History: Tue May 21 15:51:57 MDT 1991, RWM, Created.
|
|
**
|
|
** (c) Copyright Hewlett-Packard Company, 1988.
|
|
** 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.
|
|
******************************************************************************/
|
|
#ifndef INTFX_H
|
|
#define INTFX_H
|
|
|
|
/**----------------------------------------------------------------------------
|
|
Include Files and Type Defines
|
|
----------------------------------------------------------------------------**/
|
|
#include "blobs.h"
|
|
#include "intproto.h"
|
|
#include "normalis.h"
|
|
#include <math.h>
|
|
|
|
class DENORM;
|
|
|
|
namespace tesseract {
|
|
class TrainingSample;
|
|
}
|
|
|
|
struct INT_FX_RESULT_STRUCT {
|
|
int32_t Length; // total length of all outlines
|
|
int16_t Xmean, Ymean; // center of mass of all outlines
|
|
int16_t Rx, Ry; // radius of gyration
|
|
int16_t NumBL, NumCN; // number of features extracted
|
|
int16_t Width; // Width of blob in BLN coords.
|
|
uint8_t YBottom; // Bottom of blob in BLN coords.
|
|
uint8_t YTop; // Top of blob in BLN coords.
|
|
};
|
|
|
|
// The standard feature length
|
|
const double kStandardFeatureLength = 64.0 / 5;
|
|
|
|
/**----------------------------------------------------------------------------
|
|
Public Function Prototypes
|
|
----------------------------------------------------------------------------**/
|
|
void InitIntegerFX();
|
|
|
|
// Returns a vector representing the direction of a feature with the given
|
|
// theta direction in an INT_FEATURE_STRUCT.
|
|
FCOORD FeatureDirection(uint8_t theta);
|
|
|
|
namespace tesseract {
|
|
// Generates a TrainingSample from a TBLOB. Extracts features and sets
|
|
// the bounding box, so classifiers that operate on the image can work.
|
|
// TODO(rays) BlobToTrainingSample must remain a global function until
|
|
// the FlexFx and FeatureDescription code can be removed and LearnBlob
|
|
// made a member of Classify.
|
|
TrainingSample* BlobToTrainingSample(
|
|
const TBLOB& blob, bool nonlinear_norm, INT_FX_RESULT_STRUCT* fx_info,
|
|
GenericVector<INT_FEATURE_STRUCT>* bl_features);
|
|
}
|
|
|
|
#endif
|