demo/providers/OpenCVImageDataIO.cc

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/*
 * This file is part of the Alida-C++ library, an
 *
 * Advanced Library for Integrated Development of Data Analysis Applications.
 *
 * Copyright (C) 2012 - @YEAR@
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Fore more information on Alida, visit
 *
 *    http://www.informatik.uni-halle.de/alida/
 *
 */

/*
 * Most recent change(s):
 *
 * $Rev: 111 $
 * $Date: 2012-03-12 16:00:37 +0100 (Mo, 12 Mrz 2012) $
 * $Author: posch $
 *
 */

#ifdef OPENCV_SUPPORT

#include <math.h>
#include <stdio.h>

#include <fstream>
#include <iostream>
#include <string>

#include <opencv/cv.h>
#include <opencv/highgui.h>

#include "dataio/ALDDataIOManagerCmdline.h"
#include "demo/providers/OpenCVImageDataIO.h"

using namespace std;

using namespace Alida;

REGISTER_PROVIDER(OpenCVImageDataIO,IplImage,Cmdline);

void* OpenCVImageDataIO::readData(string input, string type) const
{
    IplImage *img = cvLoadImage(input.c_str(),-1);
    return img;
}

string
OpenCVImageDataIO::writeData(
                    std::string format, std::string type, void *data) const
{
    string outString;
    if (data == NULL) {
        cerr << "Image is NULL, nothing to write..." << endl;
        return outString;
    }
    IplImage *img = (IplImage*)(data);

    if (format == "-") {
        // display the image on screen
        cvNamedWindow("Result Window",1);
        cvShowImage("Result Window",img);
        while(1) {
            if (cvWaitKey( 100) == 27)
                break;
        }
        cvDestroyWindow("Result Window");
    }
    else {
        // save to file
        cvSaveImage(format.c_str(),img);
    }
    return outString;
}

#endif /* OPENCV_SUPPORT */