PGMImageWriter.h

// Copyright 2012-2014 Nicolas Normand <Nicolas.Normand@polytech.univ-nantes.fr>
// 
// This file is part of LUTBasedNSDistanceTransform.
// 
// LUTBasedNSDistanceTransform 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.
// 
// LUTBasedNSDistanceTransform 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
// LUTBasedNSDistanceTransform.  If not, see <http://www.gnu.org/licenses/>.
//
// $Id: PGMImageWriter.h 150 2014-02-26 08:59:35Z Nicolas.Normand $

extern "C" {
#include <pam.h>
#include <assert.h>
}
//#include <algorithm>
#include <iostream>


#include "ImageFilter.h"

class PGMImageWriter : public ImageConsumer<GrayscalePixelType> {
public:
    PGMImageWriter(FILE* output, int format = 0);

    void beginOfImage(int cols, int rows);
    void processRow(const GrayscalePixelType* inputRow);
    void endOfImage();

protected:
    int _cols;
    int _format;
    FILE* _output;
    struct pam _outpam;
    tuple * _tuplerow;
};