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Improve histogram measurement and display.

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Now it is possible to show histogram of luminance in RGB frames
This commit is contained in:
jfmcarreira
2018-02-06 01:10:16 +00:00
parent 2d6ba03d4a
commit 8ba512f4d0
13 changed files with 463 additions and 600 deletions
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app/ViewArea.cpp
+22 -15
View File
@@ -487,7 +487,7 @@ Void ViewArea::paintEvent( QPaintEvent* event )
{
Int imageWidth = m_pixmap.width();
Int imageHeight = m_pixmap.height();
PlaYUVerPixel sPixelValue;
PlaYUVerPixel pixelValue;
QFont font( "Helvetica" );
font.setPixelSize( 12 );
@@ -508,51 +508,58 @@ Void ViewArea::paintEvent( QPaintEvent* event )
if( frFormat == PlaYUVerPixel::COLOR_YUV )
{
sPixelValue = m_pcCurrFrame->getPixelValue( pixelTopLeft.x(), pixelTopLeft.y() );
pixelValue = m_pcCurrFrame->getPixel( pixelTopLeft.x(), pixelTopLeft.y() );
if( sPixelValue.Y() < m_uiPixelHalfScale )
if( pixelValue.Y() < m_uiPixelHalfScale )
paInter.setPen( QColor( Qt::white ) );
else
paInter.setPen( QColor( Qt::black ) );
paInter.drawText( pixelRect, Qt::AlignCenter,
"Y: " + QString::number( sPixelValue.Y() ) + "\n" +
"U: " + QString::number( sPixelValue.Cb() ) + "\n" +
"V: " + QString::number( sPixelValue.Cr() ) );
"Y: " + QString::number( pixelValue.Y() ) + "\n" +
"U: " + QString::number( pixelValue.Cb() ) + "\n" +
"V: " + QString::number( pixelValue.Cr() ) );
}
if( frFormat == PlaYUVerPixel::COLOR_GRAY )
{
sPixelValue = m_pcCurrFrame->getPixelValue( pixelTopLeft.x(), pixelTopLeft.y() );
pixelValue = m_pcCurrFrame->getPixel( pixelTopLeft.x(), pixelTopLeft.y() );
if( sPixelValue.Y() < m_uiPixelHalfScale )
if( pixelValue.Y() < m_uiPixelHalfScale )
paInter.setPen( QColor( Qt::white ) );
else
paInter.setPen( QColor( Qt::black ) );
paInter.drawText( pixelRect, Qt::AlignCenter, "Y: " + QString::number( sPixelValue.Y() ) );
paInter.drawText( pixelRect, Qt::AlignCenter, "Y: " + QString::number( pixelValue.Y() ) );
}
if( ( frFormat == PlaYUVerPixel::COLOR_RGB ) )
{
sPixelValue = m_pcCurrFrame->getPixelValue( pixelTopLeft.x(), pixelTopLeft.y() );
pixelValue = m_pcCurrFrame->getPixel( pixelTopLeft.x(), pixelTopLeft.y() );
if( ( sPixelValue.R() + sPixelValue.G() + sPixelValue.B() ) < ( m_uiPixelHalfScale * 3 ) )
if( ( pixelValue.R() + pixelValue.G() + pixelValue.B() ) < ( m_uiPixelHalfScale * 3 ) )
paInter.setPen( QColor( Qt::white ) );
else
paInter.setPen( QColor( Qt::black ) );
paInter.drawText( pixelRect, Qt::AlignCenter, "R: " + QString::number( sPixelValue.R() ) + "\nG: " + QString::number( sPixelValue.G() ) + "\nB: " + QString::number( sPixelValue.B() ) );
paInter.drawText( pixelRect, Qt::AlignCenter,
"R: " + QString::number( pixelValue.R() ) +
"\nG: " + QString::number( pixelValue.G() ) +
"\nB: " + QString::number( pixelValue.B() ) );
}
if( ( frFormat == PlaYUVerPixel::COLOR_RGBA ) )
{
sPixelValue = m_pcCurrFrame->getPixelValue( pixelTopLeft.x(), pixelTopLeft.y() );
pixelValue = m_pcCurrFrame->getPixel( pixelTopLeft.x(), pixelTopLeft.y() );
if( ( sPixelValue.R() + sPixelValue.G() + sPixelValue.B() ) < ( m_uiPixelHalfScale * 3 ) )
if( ( pixelValue.R() + pixelValue.G() + pixelValue.B() ) < ( m_uiPixelHalfScale * 3 ) )
paInter.setPen( QColor( Qt::white ) );
else
paInter.setPen( QColor( Qt::black ) );
paInter.drawText( pixelRect, Qt::AlignCenter, "R: " + QString::number( sPixelValue.R() ) + "\nG: " + QString::number( sPixelValue.G() ) + "\nB: " + QString::number( sPixelValue.B() ) + "\nA: " + QString::number( sPixelValue.A() ) );
paInter.drawText( pixelRect, Qt::AlignCenter,
"R: " + QString::number( pixelValue.R() ) +
"\nG: " + QString::number( pixelValue.G() ) +
"\nB: " + QString::number( pixelValue.B() ) +
"\nA: " + QString::number( pixelValue.A() ) );
}
}
}