src/qvworkers/qvimageresizerworker.h

00001 /*
00002  *      Copyright (C) 2007. PARP Research Group.
00003  *      <http://perception.inf.um.es>
00004  *      University of Murcia, Spain.
00005  *
00006  *      This file is part of the QVision library.
00007  *
00008  *      QVision is free software: you can redistribute it and/or modify
00009  *      it under the terms of the GNU Lesser General Public License as
00010  *      published by the Free Software Foundation, version 3 of the License.
00011  *
00012  *      QVision is distributed in the hope that it will be useful,
00013  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  *      GNU Lesser General Public License for more details.
00016  *
00017  *      You should have received a copy of the GNU Lesser General Public
00018  *      License along with QVision. If not, see <http://www.gnu.org/licenses/>.
00019  */
00020 
00024 
00025 #ifndef QVIMAGERESIZERWORKER_H
00026 #define QVIMAGERESIZERWORKER_H
00027 
00028 #include <qvcore/qvimage.h>
00029 #include <qvcore/qvworker.h>
00030 
00032 
00033 #ifndef DOXYGEN_IGNORE_THIS
00034 template <typename T, int C> class QVImageResizerWorker: public QVWorker
00035         {
00036         public:
00037                 QVImageResizerWorker(QString name): QVWorker(name)
00038                         {
00039                         // Input properties
00040                         addProperty< QVImage<T,C> >("Input image", inputFlag|outputFlag);
00041                         addProperty< double >("Scale", inputFlag, 1.0, "Factor to scale image size", 0.1, 10.0);
00042 
00043                         // Output properties
00044                         addProperty< QVImage<T,C> >("Output image", outputFlag);
00045                         }
00046 
00047                 void iterate()
00048                         {
00049                         // 0. Read input image.
00050                         const QVImage<T,C> image = getPropertyValue< QVImage<T,C> >("Input image");
00051                         const double scale = getPropertyValue< double >("Scale");
00052                         const int rows = image.getRows(), cols = image.getCols();
00053 
00054                         QVImage<T,C> output(cols*scale, rows*scale);
00055 
00056                         // 1. Scale input image
00057                         Resize(image, output);
00058 
00059                         // 1. Export scaled image
00060                         setPropertyValue< QVImage<T,C> >("Output image", output);
00061                         }
00062         };
00063 #endif
00064 #endif

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