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130 lines
4.3 KiB
130 lines
4.3 KiB
/*
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* Copyright (c) 2005 Cyrille Berger <cberger@cberger.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) 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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "kis_simple_noise_reducer.h"
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#include <kis_iterators_pixel.h>
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#include <kis_autobrush_resource.h>
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#include <kis_convolution_painter.h>
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#include <kis_colorspace_factory_registry.h>
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#include <kis_multi_integer_filter_widget.h>
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#include <kis_meta_registry.h>
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#include <kis_progress_display_interface.h>
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#include <kis_progress_subject.h>
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KisSimpleNoiseReducer::KisSimpleNoiseReducer()
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: KisFilter(id(), "enhance", i18n("&Gaussian Noise Reduction..."))
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{
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}
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KisSimpleNoiseReducer::~KisSimpleNoiseReducer()
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{
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}
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KisFilterConfigWidget * KisSimpleNoiseReducer::createConfigurationWidget(TQWidget* parent, KisPaintDeviceSP)
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{
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vKisIntegerWidgetParam param;
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param.push_back( KisIntegerWidgetParam( 0, 255, 50, i18n("Threshold"), "threshold" ) );
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param.push_back( KisIntegerWidgetParam( 0, 10, 1, i18n("Window size"), "windowsize") );
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return new KisMultiIntegerFilterWidget(parent, id().id().ascii(), id().id().ascii(), param );
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}
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KisFilterConfiguration* KisSimpleNoiseReducer::configuration(TQWidget* nwidget)
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{
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KisMultiIntegerFilterWidget* widget = (KisMultiIntegerFilterWidget*) nwidget;
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if( widget == 0 )
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{
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return new KisSimpleNoiseReducerConfiguration( 50, 1);
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} else {
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return new KisSimpleNoiseReducerConfiguration( widget->valueAt( 0 ), widget->valueAt( 1 ) );
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}
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}
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inline int ABS(int v)
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{
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if(v < 0) return -v;
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return v;
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}
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void KisSimpleNoiseReducer::process(KisPaintDeviceSP src, KisPaintDeviceSP dst, KisFilterConfiguration* config, const TQRect& rect)
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{
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int threshold, windowsize;
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if(config !=0)
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{
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KisSimpleNoiseReducerConfiguration* configSNRC = (KisSimpleNoiseReducerConfiguration*)config;
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threshold = configSNRC->threshold();
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windowsize = configSNRC->windowsize();
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} else {
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threshold = 50;
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windowsize = 1;
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}
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KisColorSpace* cs = src->colorSpace();
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// Compute the blur mask
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KisAutobrushShape* kas = new KisAutobrushCircleShape(2*windowsize+1, 2*windowsize+1, windowsize, windowsize);
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TQImage mask;
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kas->createBrush(&mask);
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KisKernelSP kernel = KisKernel::fromTQImage(mask);
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KisPaintDeviceSP interm = new KisPaintDevice(*src);
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KisConvolutionPainter painter( interm );
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if (m_progressDisplay)
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m_progressDisplay->setSubject( &painter, true, true );
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painter.beginTransaction("bouuh");
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painter.applyMatrix(kernel, rect.x(), rect.y(), rect.width(), rect.height(), BORDER_REPEAT);
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if (painter.cancelRequested()) {
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cancel();
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}
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KisHLineIteratorPixel dstIt = dst->createHLineIterator(rect.x(), rect.y(), rect.width(), true );
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KisHLineIteratorPixel srcIt = src->createHLineIterator(rect.x(), rect.y(), rect.width(), false);
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KisHLineIteratorPixel intermIt = interm->createHLineIterator(rect.x(), rect.y(), rect.width(), false);
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for( int j = 0; j < rect.height(); j++)
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{
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while( ! srcIt.isDone() )
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{
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if(srcIt.isSelected())
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{
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TQ_UINT8 diff = cs->difference(srcIt.oldRawData(), intermIt.rawData());
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if( diff > threshold)
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{
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cs->bitBlt( dstIt.rawData(), 0, cs, intermIt.rawData(), 0, 0, 0, 255, 1, 1, KisCompositeOp(COMPOSITE_COPY) );
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}
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}
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//incProgress();
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++srcIt;
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++dstIt;
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++intermIt;
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}
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srcIt.nextRow();
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dstIt.nextRow();
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intermIt.nextRow();
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}
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setProgressDone(); // Must be called even if you don't really support progression
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}
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