/usr/include/tesseract/feature_hybrid.h is in libtesseract-dev 3.02.01-6.
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* File: feature_chebyshev.h
* Description: Declaration of the Chebyshev coefficients Feature Class
* Author: Ahmad Abdulkader
* Created: 2008
*
* (C) Copyright 2008, Google Inc.
** 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.
*
**********************************************************************/
// The FeatureHybrid class implements a Bitmap feature extractor class. It
// inherits from the FeatureBase class
// This class describes the a hybrid feature vector composed by combining
// the bitmap and the chebyshev feature vectors
#ifndef FEATURE_HYBRID_H
#define FEATURE_HYBRID_H
#include "char_samp.h"
#include "feature_bmp.h"
#include "feature_chebyshev.h"
namespace tesseract {
class FeatureHybrid : public FeatureBase {
public:
explicit FeatureHybrid(TuningParams *params);
virtual ~FeatureHybrid();
// Render a visualization of the features to a CharSamp.
// This is mainly used by visual-debuggers
virtual CharSamp *ComputeFeatureBitmap(CharSamp *samp);
// Compute the features for a given CharSamp
virtual bool ComputeFeatures(CharSamp *samp, float *features);
// Returns the count of features
virtual int FeatureCnt() {
if (feature_bmp_ == NULL || feature_chebyshev_ == NULL) {
return 0;
}
return feature_bmp_->FeatureCnt() + feature_chebyshev_->FeatureCnt();
}
protected:
FeatureBmp *feature_bmp_;
FeatureChebyshev *feature_chebyshev_;
};
}
#endif // FEATURE_HYBRID_H
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