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588 lines
22 KiB
588 lines
22 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 : 2004-06-06
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* Description : Red eyes correction tool for image editor
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*
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* Copyright (C) 2004-2005 by Renchi Raju <renchi@pooh.tam.uiuc.edu>
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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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// TQt includes.
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#include <tqcolor.h>
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#include <tqhbox.h>
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#include <tqhgroupbox.h>
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#include <tqvgroupbox.h>
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#include <tqhbuttongroup.h>
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#include <tqvbox.h>
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#include <tqlabel.h>
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#include <tqlayout.h>
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#include <tqframe.h>
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#include <tqlabel.h>
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#include <tqpushbutton.h>
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#include <tqcombobox.h>
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#include <tqwhatsthis.h>
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#include <tqtooltip.h>
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// KDE includes.
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#include <kapplication.h>
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#include <kcolordialog.h>
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#include <kcolordialog.h>
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#include <tdeconfig.h>
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#include <kcursor.h>
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#include <kiconloader.h>
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#include <klocale.h>
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#include <kstandarddirs.h>
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// Digikam includes.
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#include "bcgmodifier.h"
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#include "colorgradientwidget.h"
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#include "dimg.h"
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#include "dimgimagefilters.h"
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#include "editortoolsettings.h"
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#include "histogramwidget.h"
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#include "imageiface.h"
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#include "imagewidget.h"
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// LibKDcraw includes.
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#include <libkdcraw/rnuminput.h>
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// Local includes.
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#include "redeyetool.h"
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#include "redeyetool.moc"
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using namespace KDcrawIface;
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using namespace Digikam;
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namespace DigikamImagesPluginCore
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{
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RedEyeTool::RedEyeTool(TQObject* parent)
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: EditorTool(parent)
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{
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setName("redeye");
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setToolName(i18n("Red Eye"));
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setToolIcon(SmallIcon("redeyes"));
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setToolHelp("redeyecorrectiontool.anchor");
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m_destinationPreviewData = 0;
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m_previewWidget = new ImageWidget("redeye Tool", 0,
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i18n("<p>Here you can see the image selection preview with "
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"red eye reduction applied."),
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true, ImageGuideWidget::PickColorMode, true, true);
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setToolView(m_previewWidget);
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// -------------------------------------------------------------
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EditorToolSettings *gboxSettings = new EditorToolSettings(EditorToolSettings::Default|
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EditorToolSettings::Ok|
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EditorToolSettings::Cancel);
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TQGridLayout* gridSettings = new TQGridLayout(gboxSettings->plainPage(), 11, 4);
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TQLabel *label1 = new TQLabel(i18n("Channel:"), gboxSettings->plainPage());
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label1->setAlignment(TQt::AlignRight | TQt::AlignVCenter);
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m_channelCB = new TQComboBox(false, gboxSettings->plainPage());
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m_channelCB->insertItem(i18n("Luminosity"));
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m_channelCB->insertItem(i18n("Red"));
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m_channelCB->insertItem(i18n("Green"));
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m_channelCB->insertItem(i18n("Blue"));
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TQWhatsThis::add( m_channelCB, i18n("<p>Select the histogram channel to display here:<p>"
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"<b>Luminosity</b>: display the image's luminosity values.<p>"
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"<b>Red</b>: display the red image channel values.<p>"
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"<b>Green</b>: display the green image channel values.<p>"
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"<b>Blue</b>: display the blue image channel values.<p>"));
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m_scaleBG = new TQHButtonGroup(gboxSettings->plainPage());
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m_scaleBG->setExclusive(true);
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m_scaleBG->setFrameShape(TQFrame::NoFrame);
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m_scaleBG->setInsideMargin(0);
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TQWhatsThis::add( m_scaleBG, i18n("<p>Select the histogram scale here.<p>"
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"If the image's maximum counts are small, you can use the linear scale.<p>"
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"The logarithmic scale can be used when the maximal counts are big "
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"to show all values (small and large) on the graph."));
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TQPushButton *linHistoButton = new TQPushButton(m_scaleBG);
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TQToolTip::add(linHistoButton, i18n("<p>Linear"));
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m_scaleBG->insert(linHistoButton, HistogramWidget::LinScaleHistogram);
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TDEGlobal::dirs()->addResourceType("histogram-lin", TDEGlobal::dirs()->kde_default("data") + "digikam/data");
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TQString directory = TDEGlobal::dirs()->findResourceDir("histogram-lin", "histogram-lin.png");
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linHistoButton->setPixmap(TQPixmap(directory + "histogram-lin.png"));
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linHistoButton->setToggleButton(true);
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TQPushButton *logHistoButton = new TQPushButton(m_scaleBG);
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TQToolTip::add(logHistoButton, i18n("<p>Logarithmic"));
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m_scaleBG->insert(logHistoButton, HistogramWidget::LogScaleHistogram);
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TDEGlobal::dirs()->addResourceType("histogram-log", TDEGlobal::dirs()->kde_default("data") + "digikam/data");
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directory = TDEGlobal::dirs()->findResourceDir("histogram-log", "histogram-log.png");
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logHistoButton->setPixmap(TQPixmap(directory + "histogram-log.png"));
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logHistoButton->setToggleButton(true);
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TQHBoxLayout* l1 = new TQHBoxLayout();
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l1->addWidget(label1);
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l1->addWidget(m_channelCB);
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l1->addStretch(10);
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l1->addWidget(m_scaleBG);
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// -------------------------------------------------------------
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TQVBox *histoBox = new TQVBox(gboxSettings->plainPage());
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m_histogramWidget = new HistogramWidget(256, 140, histoBox, false, true, true);
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TQWhatsThis::add( m_histogramWidget, i18n("<p>Here you can see the target preview image histogram "
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"of the selected image channel. It is "
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"updated upon setting changes."));
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TQLabel *space = new TQLabel(histoBox);
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space->setFixedHeight(1);
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m_hGradient = new ColorGradientWidget(ColorGradientWidget::Horizontal, 10, histoBox);
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m_hGradient->setColors(TQColor("black"), TQColor("white"));
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// -------------------------------------------------------------
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m_thresholdLabel = new TQLabel(i18n("Sensitivity:"), gboxSettings->plainPage());
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m_redThreshold = new RIntNumInput(gboxSettings->plainPage());
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m_redThreshold->setRange(10, 90, 1);
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m_redThreshold->setDefaultValue(20);
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TQWhatsThis::add(m_redThreshold, i18n("<p>Sets the red color pixels selection threshold. "
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"Low values will select more red color pixels (agressive correction), high "
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"values less (mild correction). Use low value if eye have been selected "
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"exactly. Use high value if other parts of the face are also selected."));
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m_smoothLabel = new TQLabel(i18n("Smooth:"), gboxSettings->plainPage());
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m_smoothLevel = new RIntNumInput(gboxSettings->plainPage());
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m_smoothLevel->setRange(0, 5, 1);
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m_smoothLevel->setDefaultValue(1);
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TQWhatsThis::add(m_smoothLevel, i18n("<p>Sets the smoothness value when blurring the border "
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"of the changed pixels. "
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"This leads to a more naturally looking pupil."));
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TQLabel *label3 = new TQLabel(i18n("Coloring Tint:"), gboxSettings->plainPage());
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m_HSSelector = new KHSSelector(gboxSettings->plainPage());
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m_VSelector = new KValueSelector(gboxSettings->plainPage());
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m_HSSelector->setMinimumSize(200, 142);
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m_VSelector->setMinimumSize(26, 142);
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TQWhatsThis::add(m_HSSelector, i18n("<p>Sets a custom color to re-colorize the eyes."));
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TQLabel *label4 = new TQLabel(i18n("Tint Level:"), gboxSettings->plainPage());
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m_tintLevel = new RIntNumInput(gboxSettings->plainPage());
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m_tintLevel->setRange(1, 200, 1);
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m_tintLevel->setDefaultValue(128);
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TQWhatsThis::add(m_tintLevel, i18n("<p>Set the tint level to adjust the luminosity of "
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"the new color of the pupil."));
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gridSettings->addMultiCellLayout(l1, 0, 0, 0, 4);
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gridSettings->addMultiCellWidget(histoBox, 1, 2, 0, 4);
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gridSettings->addMultiCellWidget(m_thresholdLabel, 3, 3, 0, 4);
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gridSettings->addMultiCellWidget(m_redThreshold, 4, 4, 0, 4);
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gridSettings->addMultiCellWidget(m_smoothLabel, 5, 5, 0, 4);
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gridSettings->addMultiCellWidget(m_smoothLevel, 6, 6, 0, 4);
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gridSettings->addMultiCellWidget(label3, 7, 7, 0, 4);
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gridSettings->addMultiCellWidget(m_HSSelector, 8, 8, 0, 3);
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gridSettings->addMultiCellWidget(m_VSelector, 8, 8, 4, 4);
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gridSettings->addMultiCellWidget(label4, 9, 9, 0, 4);
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gridSettings->addMultiCellWidget(m_tintLevel, 10, 10, 0, 4);
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gridSettings->setRowStretch(11, 10);
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gridSettings->setColStretch(3, 10);
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setToolSettings(gboxSettings);
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init();
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// -------------------------------------------------------------
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connect(m_channelCB, TQT_SIGNAL(activated(int)),
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this, TQT_SLOT(slotChannelChanged(int)));
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connect(m_scaleBG, TQT_SIGNAL(released(int)),
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this, TQT_SLOT(slotScaleChanged(int)));
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connect(m_previewWidget, TQT_SIGNAL(spotPositionChangedFromTarget(const Digikam::DColor&, const TQPoint&)),
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this, TQT_SLOT(slotColorSelectedFromTarget(const Digikam::DColor&)));
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connect(m_previewWidget, TQT_SIGNAL(signalResized()),
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this, TQT_SLOT(slotEffect()));
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connect(m_redThreshold, TQT_SIGNAL(valueChanged(int)),
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this, TQT_SLOT(slotTimer()));
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connect(m_smoothLevel, TQT_SIGNAL(valueChanged(int)),
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this, TQT_SLOT(slotTimer()));
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connect(m_HSSelector, TQT_SIGNAL(valueChanged(int, int)),
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this, TQT_SLOT(slotHSChanged(int, int)));
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connect(m_VSelector, TQT_SIGNAL(valueChanged(int)),
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this, TQT_SLOT(slotTimer()));
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connect(m_tintLevel, TQT_SIGNAL(valueChanged(int)),
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this, TQT_SLOT(slotTimer()));
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}
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RedEyeTool::~RedEyeTool()
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{
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if (m_destinationPreviewData)
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delete [] m_destinationPreviewData;
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}
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void RedEyeTool::slotHSChanged(int h, int s)
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{
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m_VSelector->blockSignals(true);
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m_VSelector->setHue(h);
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m_VSelector->setSaturation(s);
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m_VSelector->updateContents();
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m_VSelector->repaint(false);
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m_VSelector->blockSignals(false);
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slotTimer();
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}
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void RedEyeTool::slotChannelChanged(int channel)
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{
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switch (channel)
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{
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case LuminosityChannel:
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m_histogramWidget->m_channelType = HistogramWidget::ValueHistogram;
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m_hGradient->setColors(TQColor("black"), TQColor("white"));
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break;
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case RedChannel:
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m_histogramWidget->m_channelType = HistogramWidget::RedChannelHistogram;
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m_hGradient->setColors(TQColor("black"), TQColor("red"));
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break;
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case GreenChannel:
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m_histogramWidget->m_channelType = HistogramWidget::GreenChannelHistogram;
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m_hGradient->setColors(TQColor("black"), TQColor("green"));
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break;
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case BlueChannel:
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m_histogramWidget->m_channelType = HistogramWidget::BlueChannelHistogram;
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m_hGradient->setColors(TQColor("black"), TQColor("blue"));
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break;
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}
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m_histogramWidget->repaint(false);
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}
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void RedEyeTool::slotScaleChanged(int scale)
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{
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m_histogramWidget->m_scaleType = scale;
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m_histogramWidget->repaint(false);
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}
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void RedEyeTool::slotColorSelectedFromTarget(const DColor& color)
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{
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m_histogramWidget->setHistogramGuideByColor(color);
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}
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void RedEyeTool::readSettings()
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{
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TDEConfig* config = kapp->config();
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config->setGroup("redeye Tool");
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m_channelCB->setCurrentItem(config->readNumEntry("Histogram Channel", 0)); // Luminosity.
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m_scaleBG->setButton(config->readNumEntry("Histogram Scale", HistogramWidget::LogScaleHistogram));
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m_redThreshold->setValue(config->readNumEntry("RedThreshold", m_redThreshold->defaultValue()));
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m_smoothLevel->setValue(config->readNumEntry("SmoothLevel", m_smoothLevel->defaultValue()));
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m_HSSelector->setXValue(config->readNumEntry("HueColoringTint", 0));
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m_HSSelector->setYValue(config->readNumEntry("SatColoringTint", 0));
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m_VSelector->setValue(config->readNumEntry("ValColoringTint", 0));
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m_tintLevel->setValue(config->readNumEntry("TintLevel", m_tintLevel->defaultValue()));
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slotHSChanged(m_HSSelector->xValue(), m_HSSelector->yValue());
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m_histogramWidget->reset();
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slotChannelChanged(m_channelCB->currentItem());
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slotScaleChanged(m_scaleBG->selectedId());
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}
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void RedEyeTool::writeSettings()
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{
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TDEConfig* config = kapp->config();
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config->setGroup("redeye Tool");
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config->writeEntry("Histogram Channel", m_channelCB->currentItem());
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config->writeEntry("Histogram Scale", m_scaleBG->selectedId());
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config->writeEntry("RedThreshold", m_redThreshold->value());
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config->writeEntry("SmoothLevel", m_smoothLevel->value());
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config->writeEntry("HueColoringTint", m_HSSelector->xValue());
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config->writeEntry("SatColoringTint", m_HSSelector->yValue());
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config->writeEntry("ValColoringTint", m_VSelector->value());
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config->writeEntry("TintLevel", m_tintLevel->value());
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m_previewWidget->writeSettings();
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config->sync();
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}
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void RedEyeTool::slotResetSettings()
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{
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m_redThreshold->blockSignals(true);
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m_HSSelector->blockSignals(true);
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m_VSelector->blockSignals(true);
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m_tintLevel->blockSignals(true);
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m_redThreshold->slotReset();
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m_smoothLevel->slotReset();
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// Black color by default
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m_HSSelector->setXValue(0);
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m_HSSelector->setYValue(0);
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m_VSelector->setValue(0);
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m_tintLevel->slotReset();
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m_redThreshold->blockSignals(false);
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m_HSSelector->blockSignals(false);
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m_VSelector->blockSignals(false);
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m_tintLevel->blockSignals(false);
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}
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void RedEyeTool::slotEffect()
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{
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kapp->setOverrideCursor(KCursor::waitCursor());
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m_histogramWidget->stopHistogramComputation();
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if (m_destinationPreviewData)
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delete [] m_destinationPreviewData;
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// Here, we need to use the real selection image data because we will apply
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// a Gaussian blur filter on pixels and we cannot use directly the preview scaled image
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// else the blur radius will not give the same result between preview and final rendering.
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ImageIface* iface = m_previewWidget->imageIface();
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m_destinationPreviewData = iface->getImageSelection();
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int w = iface->selectedWidth();
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int h = iface->selectedHeight();
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bool sb = iface->originalSixteenBit();
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bool a = iface->originalHasAlpha();
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DImg selection(w, h, sb, a, m_destinationPreviewData);
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redEyeFilter(selection);
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DImg preview = selection.smoothScale(iface->previewWidth(), iface->previewHeight());
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iface->putPreviewImage(preview.bits());
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m_previewWidget->updatePreview();
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// Update histogram.
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memcpy(m_destinationPreviewData, selection.bits(), selection.numBytes());
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m_histogramWidget->updateData(m_destinationPreviewData, w, h, sb, 0, 0, 0, false);
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kapp->restoreOverrideCursor();
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}
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void RedEyeTool::finalRendering()
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{
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kapp->setOverrideCursor( KCursor::waitCursor() );
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ImageIface* iface = m_previewWidget->imageIface();
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uchar *data = iface->getImageSelection();
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int w = iface->selectedWidth();
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int h = iface->selectedHeight();
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bool sixteenBit = iface->originalSixteenBit();
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bool hasAlpha = iface->originalHasAlpha();
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DImg selection(w, h, sixteenBit, hasAlpha, data);
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delete [] data;
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redEyeFilter(selection);
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iface->putImageSelection(i18n("Red Eyes Correction"), selection.bits());
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kapp->restoreOverrideCursor();
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}
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void RedEyeTool::redEyeFilter(DImg& selection)
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{
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DImg mask(selection.width(), selection.height(), selection.sixteenBit(), true,
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selection.bits(), true);
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selection = mask.copy();
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float redThreshold = m_redThreshold->value()/10.0;
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int hue = m_HSSelector->xValue();
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int sat = m_HSSelector->yValue();
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int val = m_VSelector->value();
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KColor coloring;
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coloring.setHsv(hue, sat, val);
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struct channel
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{
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float red_gain;
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float green_gain;
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float blue_gain;
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};
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channel red_chan, green_chan, blue_chan;
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red_chan.red_gain = 0.1;
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red_chan.green_gain = 0.6;
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red_chan.blue_gain = 0.3;
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green_chan.red_gain = 0.0;
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green_chan.green_gain = 1.0;
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green_chan.blue_gain = 0.0;
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blue_chan.red_gain = 0.0;
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blue_chan.green_gain = 0.0;
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blue_chan.blue_gain = 1.0;
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float red_norm, green_norm, blue_norm;
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int level = 201 - m_tintLevel->value();
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red_norm = 1.0 / (red_chan.red_gain + red_chan.green_gain + red_chan.blue_gain);
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green_norm = 1.0 / (green_chan.red_gain + green_chan.green_gain + green_chan.blue_gain);
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blue_norm = 1.0 / (blue_chan.red_gain + blue_chan.green_gain + blue_chan.blue_gain);
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red_norm *= coloring.red() / level;
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green_norm *= coloring.green() / level;
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blue_norm *= coloring.blue() / level;
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// Perform a red color pixels detection in selection image and create a correction mask using an alpha channel.
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if (!selection.sixteenBit()) // 8 bits image.
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{
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uchar* ptr = selection.bits();
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uchar* mptr = mask.bits();
|
|
uchar r, g, b, r1, g1, b1;
|
|
|
|
for (uint i = 0 ; i < selection.width() * selection.height() ; i++)
|
|
{
|
|
b = ptr[0];
|
|
g = ptr[1];
|
|
r = ptr[2];
|
|
mptr[3] = 255;
|
|
|
|
if (r >= ( redThreshold * g))
|
|
{
|
|
r1 = TQMIN(255, (int)(red_norm * (red_chan.red_gain * r +
|
|
red_chan.green_gain * g +
|
|
red_chan.blue_gain * b)));
|
|
|
|
g1 = TQMIN(255, (int)(green_norm * (green_chan.red_gain * r +
|
|
green_chan.green_gain * g +
|
|
green_chan.blue_gain * b)));
|
|
|
|
b1 = TQMIN(255, (int)(blue_norm * (blue_chan.red_gain * r +
|
|
blue_chan.green_gain * g +
|
|
blue_chan.blue_gain * b)));
|
|
|
|
mptr[0] = b1;
|
|
mptr[1] = g1;
|
|
mptr[2] = r1;
|
|
mptr[3] = TQMIN( (int)((r-g) / 150.0 * 255.0), 255);
|
|
}
|
|
|
|
ptr += 4;
|
|
mptr+= 4;
|
|
}
|
|
}
|
|
else // 16 bits image.
|
|
{
|
|
unsigned short* ptr = (unsigned short*)selection.bits();
|
|
unsigned short* mptr = (unsigned short*)mask.bits();
|
|
unsigned short r, g, b, r1, g1, b1;
|
|
|
|
for (uint i = 0 ; i < selection.width() * selection.height() ; i++)
|
|
{
|
|
b = ptr[0];
|
|
g = ptr[1];
|
|
r = ptr[2];
|
|
mptr[3] = 65535;
|
|
|
|
if (r >= ( redThreshold * g))
|
|
{
|
|
r1 = TQMIN(65535, (int)(red_norm * (red_chan.red_gain * r +
|
|
red_chan.green_gain * g +
|
|
red_chan.blue_gain * b)));
|
|
|
|
g1 = TQMIN(65535, (int)(green_norm * (green_chan.red_gain * r +
|
|
green_chan.green_gain * g +
|
|
green_chan.blue_gain * b)));
|
|
|
|
b1 = TQMIN(65535, (int)(blue_norm * (blue_chan.red_gain * r +
|
|
blue_chan.green_gain * g +
|
|
blue_chan.blue_gain * b)));
|
|
|
|
mptr[0] = b1;
|
|
mptr[1] = g1;
|
|
mptr[2] = r1;
|
|
mptr[3] = TQMIN( (int)((r-g) / 38400.0 * 65535.0), 65535);;
|
|
}
|
|
|
|
ptr += 4;
|
|
mptr+= 4;
|
|
}
|
|
}
|
|
|
|
// Now, we will blur only the transparency pixels from the mask.
|
|
|
|
DImg mask2 = mask.copy();
|
|
DImgImageFilters filter;
|
|
filter.gaussianBlurImage(mask2.bits(), mask2.width(), mask2.height(),
|
|
mask2.sixteenBit(), m_smoothLevel->value());
|
|
|
|
if (!selection.sixteenBit()) // 8 bits image.
|
|
{
|
|
uchar* mptr = mask.bits();
|
|
uchar* mptr2 = mask2.bits();
|
|
|
|
for (uint i = 0 ; i < mask2.width() * mask2.height() ; i++)
|
|
{
|
|
if (mptr2[3] < 255)
|
|
{
|
|
mptr[0] = mptr2[0];
|
|
mptr[1] = mptr2[1];
|
|
mptr[2] = mptr2[2];
|
|
mptr[3] = mptr2[3];
|
|
}
|
|
|
|
mptr += 4;
|
|
mptr2+= 4;
|
|
}
|
|
}
|
|
else // 16 bits image.
|
|
{
|
|
unsigned short* mptr = (unsigned short*)mask.bits();
|
|
unsigned short* mptr2 = (unsigned short*)mask2.bits();
|
|
|
|
for (uint i = 0 ; i < mask2.width() * mask2.height() ; i++)
|
|
{
|
|
if (mptr2[3] < 65535)
|
|
{
|
|
mptr[0] = mptr2[0];
|
|
mptr[1] = mptr2[1];
|
|
mptr[2] = mptr2[2];
|
|
mptr[3] = mptr2[3];
|
|
}
|
|
|
|
mptr += 4;
|
|
mptr2+= 4;
|
|
}
|
|
}
|
|
|
|
// - Perform pixels blending using alpha channel between the mask and the selection.
|
|
|
|
DColorComposer *composer = DColorComposer::getComposer(DColorComposer::PorterDuffSrcOver);
|
|
|
|
// NOTE: 'mask' is the Source image, 'selection' is the Destination image.
|
|
|
|
selection.bitBlendImage(composer, &mask,
|
|
0, 0, mask.width(), mask.height(),
|
|
0, 0);
|
|
}
|
|
|
|
} // NameSpace DigikamImagesPluginCore
|