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106 lines
3.2 KiB
106 lines
3.2 KiB
/* ============================================================
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*
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* This file is a part of digiKam project
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* http://www.digikam.org
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*
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* Date : 2004-07-29
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* Description : image levels manipulation methods.
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*
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* Copyright (C) 2004-2008 by Gilles Caulier <caulier dot gilles at gmail dot com>
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*
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* This program is free software; you can redistribute it
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* and/or modify it under the terms of the GNU General
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* Public License as published by the Free Software Foundation;
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* either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* ============================================================ */
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#ifndef IMAGELEVELS_H
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#define IMAGELEVELS_H
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#define CLAMP(x,l,u) ((x)<(l)?(l):((x)>(u)?(u):(x)))
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/* Map RGB to intensity */
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#define LEVELS_RGB_INTENSITY_RED 0.30
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#define LEVELS_RGB_INTENSITY_GREEN 0.59
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#define LEVELS_RGB_INTENSITY_BLUE 0.11
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#define LEVELS_RGB_INTENSITY(r,g,b) ((r) * LEVELS_RGB_INTENSITY_RED + \
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(g) * LEVELS_RGB_INTENSITY_GREEN + \
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(b) * LEVELS_RGB_INTENSITY_BLUE)
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// KDE includes.
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#include <kurl.h>
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// Local includes.
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#include "dcolor.h"
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#include "digikam_export.h"
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namespace Digikam
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{
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class ImageLevelsPriv;
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class ImageHistogram;
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class DIGIKAM_EXPORT ImageLevels
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{
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public:
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ImageLevels(bool sixteenBit);
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~ImageLevels();
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bool isDirty();
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bool isSixteenBits();
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void reset();
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// Methods for to manipulate the levels data.
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void levelsChannelReset(int channel);
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void levelsAuto(ImageHistogram *hist);
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void levelsChannelAuto(ImageHistogram *hist, int channel);
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int levelsInputFromColor(int channel, const DColor& color);
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void levelsBlackToneAdjustByColors(int channel, const DColor& color);
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void levelsGrayToneAdjustByColors(int channel, const DColor& color);
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void levelsWhiteToneAdjustByColors(int channel, const DColor& color);
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void levelsCalculateTransfers();
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float levelsLutFunc(int n_channels, int channel, float value);
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void levelsLutSetup(int nchannels);
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void levelsLutProcess(uchar *srcPR, uchar *destPR, int w, int h);
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// Methods for to set manually the levels values.
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void setLevelGammaValue(int Channel, double val);
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void setLevelLowInputValue(int Channel, int val);
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void setLevelHighInputValue(int Channel, int val);
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void setLevelLowOutputValue(int Channel, int val);
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void setLevelHighOutputValue(int Channel, int val);
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double getLevelGammaValue(int Channel);
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int getLevelLowInputValue(int Channel);
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int getLevelHighInputValue(int Channel);
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int getLevelLowOutputValue(int Channel);
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int getLevelHighOutputValue(int Channel);
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// Methods for to save/load the levels values to/from a Gimp levels text file.
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bool saveLevelsToGimpLevelsFile(const KURL& fileUrl);
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bool loadLevelsFromGimpLevelsFile(const KURL& fileUrl);
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private:
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ImageLevelsPriv* d;
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};
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} // NameSpace Digikam
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#endif /* IMAGELEVELS_H */
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