Basic TransferFunctions
sRGB.EOTF |
the standardized sRGB transfer function |
BT.709.EOTF |
the standardized BT.709 transfer function |
BT.2020.EOTF |
the standardized BT.2020 transfer function |
ProPhotoRGB.EOTF |
the standardized ProPhotoRGB transfer function |
SMPTE.240M.EOTF |
the standardized SMPTE-240M transfer function |
All of these are built-in TransferFunction objects;
they have no parameters and are ready-to-go.
All are EOTFs and have domain and range the interval [0,1], and all are monotone increasing.
All are defined in 2 pieces, with a linear segment near 0.
All are easily inverted.
Wikipedia. sRGB. http://en.wikipedia.org/wiki/SRGB.
BT.709. Parameter values for the HDTV standards for production and international programme exchange. June 2015.
BT.2020. Parameter values for ultra-high definition television systems for production and international programme exchange. October 2015.
Wikipedia. ProPhoto RGB. http://en.wikipedia.org/wiki/ProPhoto_RGB_color_space.
ANSI/SMPTE 240M-1995. SMPTE STANDARD for Television Signal Parameters 1125-Line High-Definition Production Systems.
# make plot comparing 5 EOTFs
colvec = c('black','red','blue','green','orange')
plot( sRGB.EOTF, color=colvec[1], main="The Basic 5 EOTFs" )
plot( BT.709.EOTF, color=colvec[2], add=TRUE )
plot( BT.2020.EOTF, color=colvec[3], add=TRUE )
plot( ProPhotoRGB.EOTF, color=colvec[4], add=TRUE )
plot( SMPTE.240M.EOTF, color=colvec[5], add=TRUE )
legend( 'topleft', legend=c('sRGB','BT.709','BT.2020','ProPhotoRGB','SMPTE.240M'),
col=colvec, bty='n', lty=1, lwd=2 )Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.