WhiteRectangleDetector.h Example File

 #ifndef __WHITERECTANGLEDETECTOR_H__
 #define __WHITERECTANGLEDETECTOR_H__

 /*
  *  WhiteRectangleDetector.h
  *
  *
  *  Created by Luiz Silva on 09/02/2010.
  *  Copyright 2010  authors All rights reserved.
  *
  * 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.
  */

 #include <vector>
 #include <zxing/ReaderException.h>
 #include <zxing/ResultPoint.h>
 #include <zxing/common/BitMatrix.h>
 #include <zxing/common/Counted.h>
 #include <zxing/ResultPoint.h>

 namespace zxing {

 class WhiteRectangleDetector : public Counted {
   private:
     static int INIT_SIZE;
     static int CORR;
     Ref<BitMatrix> image_;
     int width_;
     int height_;
     int leftInit_;
     int rightInit_;
     int downInit_;
     int upInit_;

   public:
     WhiteRectangleDetector(Ref<BitMatrix> image);
     WhiteRectangleDetector(Ref<BitMatrix> image, int initSize, int x, int y);
     std::vector<Ref<ResultPoint> > detect();

   private:
     Ref<ResultPoint> getBlackPointOnSegment(int aX, int aY, int bX, int bY);
     std::vector<Ref<ResultPoint> > centerEdges(Ref<ResultPoint> y, Ref<ResultPoint> z,
                                     Ref<ResultPoint> x, Ref<ResultPoint> t);
     bool containsBlackPoint(int a, int b, int fixed, bool horizontal);
 };
 }

 #endif