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/* ============================================================
*
* This file is a part of digiKam project
* http://www.digikam.org
*
* Date : 2008-13-08
* Description : Raw post processing corrections.
*
* Copyright (C) 2008 by Gilles Caulier <caulier dot gilles at gmail dot com>
*
* 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 2, 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.
*
* ============================================================ */
// Local includes.
#include "ddebug.h"
#include "imagehistogram.h"
#include "imagecurves.h"
#include "imagelevels.h"
#include "bcgmodifier.h"
#include "whitebalance.h"
#include "dimgimagefilters.h"
#include "rawpostprocessing.h"
namespace Digikam
{
RawPostProcessing::RawPostProcessing(DImg *orgImage, TQObject *parent, const DRawDecoding& settings)
: DImgThreadedFilter(orgImage, parent, "RawPostProcessing")
{
m_customRawSettings = settings;
initFilter();
}
RawPostProcessing::RawPostProcessing(DImgThreadedFilter *parentFilter,
const DImg &orgImage, const DImg &destImage,
int progressBegin, int progressEnd, const DRawDecoding& settings)
: DImgThreadedFilter(parentFilter, orgImage, destImage, progressBegin, progressEnd,
parentFilter->filterName() + ": RawPostProcessing")
{
m_customRawSettings = settings;
filterImage();
}
void RawPostProcessing::filterImage()
{
rawPostProcessing();
}
void RawPostProcessing::rawPostProcessing()
{
if (!m_orgImage.bits() || !m_orgImage.width() || !m_orgImage.height())
{
DWarning() << ("RawPostProcessing::rawPostProcessing: no image m_orgImage.bits() available!")
<< endl;
return;
}
if (!m_customRawSettings.postProcessingSettingsIsDirty())
{
m_destImage = m_orgImage;
return;
}
postProgress(15);
if (m_customRawSettings.exposureComp != 0.0 || m_customRawSettings.saturation != 1.0)
{
WhiteBalance wb(m_orgImage.sixteenBit());
wb.whiteBalance(m_orgImage.bits(), m_orgImage.width(), m_orgImage.height(), m_orgImage.sixteenBit(),
0.0, // black
m_customRawSettings.exposureComp, // exposure
6500.0, // temperature (neutral)
1.0, // green
0.5, // dark
1.0, // gamma
m_customRawSettings.saturation); // saturation
}
postProgress(30);
if (m_customRawSettings.lightness != 0.0 || m_customRawSettings.contrast != 1.0 || m_customRawSettings.gamma != 1.0)
{
BCGModifier bcg;
bcg.setBrightness(m_customRawSettings.lightness);
bcg.setContrast(m_customRawSettings.contrast);
bcg.setGamma(m_customRawSettings.gamma);
bcg.applyBCG(m_orgImage.bits(), m_orgImage.width(), m_orgImage.height(), m_orgImage.sixteenBit());
}
postProgress(45);
if (!m_customRawSettings.curveAdjust.isEmpty())
{
DImg tmp(m_orgImage.width(), m_orgImage.height(), m_orgImage.sixteenBit());
ImageCurves curves(m_orgImage.sixteenBit());
curves.setCurvePoints(ImageHistogram::ValueChannel, m_customRawSettings.curveAdjust);
curves.curvesCalculateCurve(ImageHistogram::ValueChannel);
curves.curvesLutSetup(ImageHistogram::AlphaChannel);
curves.curvesLutProcess(m_orgImage.bits(), tmp.bits(), m_orgImage.width(), m_orgImage.height());
memcpy(m_orgImage.bits(), tmp.bits(), tmp.numBytes());
}
postProgress(60);
if (!m_customRawSettings.levelsAdjust.isEmpty())
{
DImg tmp(m_orgImage.width(), m_orgImage.height(), m_orgImage.sixteenBit());
ImageLevels levels(m_orgImage.sixteenBit());
int j=0;
for (int i = 0 ; i < 4; i++)
{
levels.setLevelLowInputValue(i, m_customRawSettings.levelsAdjust[j++]);
levels.setLevelHighInputValue(i, m_customRawSettings.levelsAdjust[j++]);
levels.setLevelLowOutputValue(i, m_customRawSettings.levelsAdjust[j++]);
levels.setLevelHighOutputValue(i, m_customRawSettings.levelsAdjust[j++]);
}
levels.levelsLutSetup(ImageHistogram::AlphaChannel);
levels.levelsLutProcess(m_orgImage.bits(), tmp.bits(), m_orgImage.width(), m_orgImage.height());
memcpy(m_orgImage.bits(), tmp.bits(), tmp.numBytes());
}
postProgress(75);
m_destImage = m_orgImage;
postProgress(100);
}
} // NameSpace Digikam
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