88 lines
2.3 KiB
C++
88 lines
2.3 KiB
C++
/* This file is a part of plaYUVer project
|
|
* Copyright (C) 2014 by Luis Lucas (luisfrlucas@gmail.com)
|
|
* Joao Carreira (jfmcarreira@gmail.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 of the License, 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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
/**
|
|
* \file MeasurePSNR.cpp
|
|
* \brief Frame Difference module
|
|
*/
|
|
|
|
#include "MeasurePSNR.h"
|
|
|
|
namespace plaYUVer
|
|
{
|
|
|
|
MeasurePSNR::MeasurePSNR()
|
|
{
|
|
/* Module Definition */
|
|
m_iModuleType = FRAME_PROCESSING_MODULE;
|
|
m_pchModuleCategory = "Quality";
|
|
m_pchModuleName = "PSNR Y";
|
|
m_pchModuleTooltip = "Measure the PSNR between two images";
|
|
m_uiNumberOfFrames = MODULE_REQUIRES_TWO_FRAMES;
|
|
m_uiModuleRequirements = MODULE_REQUIRES_SIDEBAR;
|
|
m_bApplyWhilePlaying = APPLY_WHILE_PLAYING;
|
|
}
|
|
|
|
Void MeasurePSNR::create( PlaYUVerFrame* Org )
|
|
{
|
|
}
|
|
|
|
Double MeasurePSNR::getMSE( PlaYUVerFrame* Org, PlaYUVerFrame* Rec, Int component )
|
|
{
|
|
Pel* pInput1PelYUV = Org->getPelBufferYUV()[component][0];
|
|
Pel* pInput2PelYUV = Rec->getPelBufferYUV()[component][0];
|
|
|
|
Int aux_pel_1, aux_pel_2;
|
|
Int diff = 0;
|
|
Double ssd = 0;
|
|
|
|
for( UInt y = 0; y < Org->getHeight(); y++ )
|
|
for( UInt x = 0; x < Org->getWidth(); x++ )
|
|
{
|
|
aux_pel_1 = *pInput1PelYUV++;
|
|
aux_pel_2 = *pInput2PelYUV++;
|
|
diff = aux_pel_1 - aux_pel_2;
|
|
ssd += ( Double )( diff * diff );
|
|
}
|
|
if( ssd == 0.0 )
|
|
{
|
|
return 0.0;
|
|
}
|
|
return ssd / ( Org->getWidth() * Org->getHeight() );
|
|
}
|
|
|
|
Double MeasurePSNR::measure( PlaYUVerFrame* Org, PlaYUVerFrame* Rec )
|
|
{
|
|
Double psnrY = 100;
|
|
Double mseY = MeasurePSNR::getMSE( Org, Rec, LUMA );
|
|
|
|
if( mseY != 0 )
|
|
psnrY = 10 * log10( 65025 / mseY );
|
|
|
|
return psnrY;
|
|
}
|
|
|
|
Void MeasurePSNR::destroy()
|
|
{
|
|
|
|
}
|
|
|
|
} // NAMESPACE
|
|
|