CRNImageBW.h

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/* Copyright 2006-2015 Yann LEYDIER, CoReNum, INSA-Lyon
 * 
 * This file is part of libcrn.
 * 
 * libcrn is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * libcrn 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 Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with libcrn.  If not, see <http://www.gnu.org/licenses/>.
 * 
 * file: CRNImageBW.h
 * \author Yann LEYDIER
 */

#ifndef CRNIMAGEBW_HEADER
#define CRNIMAGEBW_HEADER

#include <CRNImage/CRNImage.h>

namespace crn
{
    class MatrixInt;
    class Histogram;

    Histogram LeftProfile(const ImageBW &img);
    Histogram RightProfile(const ImageBW &img);
    Histogram TopProfile(const ImageBW &img);
    Histogram BottomProfile(const ImageBW &img);
    Histogram HorizontalProjection(const ImageBW &img);
    Histogram VerticalProjection(const ImageBW &img);

    Histogram VerticalSlantedProjection(const ImageBW &img, const Angle<Radian> &theta);

    double MeanBlackRun(const ImageBW &img) noexcept;
    double MeanWhiteRun(const ImageBW &img, int blackrun = -1) noexcept;
    double MeanBlackVRun(const ImageBW &img) noexcept;
    size_t CountBlackPixels(const ImageBW &img) noexcept;
    size_t CountWhitePixels(const ImageBW &img) noexcept;
    
    size_t Regularize(ImageBW &img, size_t min_neighbors = 0);

    ImageIntGray DistanceTransform(const ImageBW &img, const MatrixInt &m1, const MatrixInt &m2);
}
#endif