80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
/* This file is a part of plaYUVer project
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* Copyright (C) 2014-2015 by Luis Lucas (luisfrlucas@gmail.com)
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* Joao Carreira (jfmcarreira@gmail.com)
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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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/**
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* \file FrameDifference.cpp
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* \brief Frame Difference module
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*/
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#include "FrameDifference.h"
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#include <algorithm>
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namespace plaYUVer
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{
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FrameDifference::FrameDifference()
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{
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/* Module Definition */
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m_iModuleType = FRAME_PROCESSING_MODULE;
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m_pchModuleCategory = "Measurements";
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m_pchModuleName = "FrameDifference";
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m_pchModuleTooltip = "Measure the difference between two images (Y plane), Y1 - Y2, with max absolute diff of 128";
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m_uiModuleRequirements = MODULE_REQUIRES_NEW_WINDOW;
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m_uiNumberOfFrames = MODULE_REQUIRES_TWO_FRAMES;
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m_pcFrameDifference = NULL;
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}
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Void FrameDifference::create( PlaYUVerFrame* Input )
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{
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m_pcFrameDifference = new PlaYUVerFrame( Input->getWidth(), Input->getHeight(), PlaYUVerFrame::GRAY );
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}
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PlaYUVerFrame* FrameDifference::process( PlaYUVerFrame* Input1, PlaYUVerFrame* Input2 )
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{
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Pel* pInput1PelYUV = Input1->getPelBufferYUV()[0][0];
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Pel* pInput2PelYUV = Input2->getPelBufferYUV()[0][0];
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Pel* pOutputPelYUV = m_pcFrameDifference->getPelBufferYUV()[0][0];
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Int aux_pel_1, aux_pel_2;
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Int diff = 0;
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for( UInt y = 0; y < m_pcFrameDifference->getHeight(); y++ )
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for( UInt x = 0; x < m_pcFrameDifference->getWidth(); x++ )
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{
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aux_pel_1 = *pInput1PelYUV++;
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aux_pel_2 = *pInput2PelYUV++;
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diff = aux_pel_1 - aux_pel_2;
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diff = std::min( diff, 127 );
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diff = std::max( diff, -128 );
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diff += 128;
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*pOutputPelYUV++ = diff;
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}
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return m_pcFrameDifference;
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}
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Void FrameDifference::destroy()
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{
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if( m_pcFrameDifference )
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delete m_pcFrameDifference;
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m_pcFrameDifference = NULL;
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}
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} // NAMESPACE
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