Tesseract 3.02

- Main Page
- Related Pages
- Modules
- Namespaces
- Classes
- Files

- File List
- File Members

All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
feature_hybrid.h
Go to the documentation of this file.
1 /**********************************************************************
2 * File: feature_chebyshev.h
3 * Description: Declaration of the Chebyshev coefficients Feature Class
4 * Author: Ahmad Abdulkader
5 * Created: 2008
6 *
7 * (C) Copyright 2008, Google Inc.
8 ** Licensed under the Apache License, Version 2.0 (the "License");
9 ** you may not use this file except in compliance with the License.
10 ** You may obtain a copy of the License at
11 ** http://www.apache.org/licenses/LICENSE-2.0
12 ** Unless required by applicable law or agreed to in writing, software
13 ** distributed under the License is distributed on an "AS IS" BASIS,
14 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 ** See the License for the specific language governing permissions and
16 ** limitations under the License.
17 *
18 **********************************************************************/
19
20 // The FeatureHybrid class implements a Bitmap feature extractor class. It
21 // inherits from the FeatureBase class
22 // This class describes the a hybrid feature vector composed by combining
23 // the bitmap and the chebyshev feature vectors
24
25 #ifndef FEATURE_HYBRID_H
26 #define FEATURE_HYBRID_H
27
28 #include "char_samp.h"
29 #include "feature_bmp.h"
30 #include "feature_chebyshev.h"
31
32 namespace tesseract {
33 class FeatureHybrid : public FeatureBase {
34 public:
35 explicit FeatureHybrid(TuningParams *params);
36 virtual ~FeatureHybrid();
37 // Render a visualization of the features to a CharSamp.
38 // This is mainly used by visual-debuggers
39 virtual CharSamp *ComputeFeatureBitmap(CharSamp *samp);
40 // Compute the features for a given CharSamp
41 virtual bool ComputeFeatures(CharSamp *samp, float *features);
42 // Returns the count of features
43 virtual int FeatureCnt() {
44 if (feature_bmp_ == NULL || feature_chebyshev_ == NULL) {
45 return 0;
46 }
47 return feature_bmp_->FeatureCnt() + feature_chebyshev_->FeatureCnt();
48 }
49
50 protected:
51 FeatureBmp *feature_bmp_;
52 FeatureChebyshev *feature_chebyshev_;
53 };
54 }
55
56 #endif // FEATURE_HYBRID_H