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