QVision: Qt's Image, Video and Computer Vision Library

00001 /*
00002  *      Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012. 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 <QVImage>
00029 #include <QVProcessingBlock>
00030 
00032 
00036 template <typename T, int C> class QVImageResizerBlock: public QVProcessingBlock
00037         {
00038         public:
00039                 QVImageResizerBlock(QString name = QString()): QVProcessingBlock(name)
00040                         {
00041                         // Input properties
00042                         addProperty< QVImage<T,C> >("Input image", inputFlag|outputFlag);
00043                         addProperty< double >("Scale", inputFlag, 1.0, "Factor to scale image size", 0.1, 10.0);
00044 
00045                         // Output properties
00046                         addProperty< QVImage<T,C> >("Output image", outputFlag);
00047                         }
00048 
00049                 void iterate()
00050                         {
00051                         // 0. Read input image.
00052                         const QVImage<T,C> image = getPropertyValue< QVImage<T,C> >("Input image");
00053                         const double scale = getPropertyValue< double >("Scale");
00054                         const int rows = image.getRows(), cols = image.getCols();
00055 
00056                         QVImage<T,C> output(cols*scale, rows*scale);
00057 
00058                         // 1. Scale input image
00059                         Resize(image, output);
00060 
00061                         // 1. Export scaled image
00062                         setPropertyValue< QVImage<T,C> >("Output image", output);
00063                         }
00064         };
00066 
00067 #endif
src/qvblockprogramming/qvprocessingblocks/qvimageresizerblock.h
