[argyllcms] Re: gamut conversion through the LUT ?!
- From: Graeme Gill <graeme@xxxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Tue, 22 Jul 2008 12:02:24 +1000
Gerhard Fuernkranz wrote:
[granted that the graphics card supports shaders at all], but if
hardware video playback capabilities of the graphics card are utilized,
then my understanding is that shaders cannot be used, but only
unspecific adjustments like e.g. "brightness", "contrast", "saturation",
"hue" are possible [and nobody knows what these adjustments are really
doing, in colorimetric terms, and how they interact].
I would suspect that some of them have 3x3 matrix transform support,
since often they are having to do a color conversion from YCC or
something similar, so in theory they could transform to the specific
display chromaticities and white point rather than a generic sRGB etc.,
if there was an interface for specifying such things.
Graeme Gill.
- References:
- [argyllcms] gamut conversion through the LUT ?!
- From: lee scratchy
- [argyllcms] Re: gamut conversion through the LUT ?!
- From: Gerhard Fuernkranz
- [argyllcms] Re: gamut conversion through the LUT ?!
- From: lee scratchy
- [argyllcms] Re: gamut conversion through the LUT ?!
- From: Hal V. Engel
- [argyllcms] Re: gamut conversion through the LUT ?!
- From: lee scratchy
- [argyllcms] Re: gamut conversion through the LUT ?!
- From: Gerhard Fuernkranz
Other related posts:
- » [argyllcms] gamut conversion through the LUT ?!
- » [argyllcms] Re: gamut conversion through the LUT ?!
- » [argyllcms] Re: gamut conversion through the LUT ?!
- » [argyllcms] Re: gamut conversion through the LUT ?!
- » [argyllcms] Re: gamut conversion through the LUT ?!
- » [argyllcms] Re: gamut conversion through the LUT ?!
- » [argyllcms] Re: gamut conversion through the LUT ?!
- » [argyllcms] Re: gamut conversion through the LUT ?!
- » [argyllcms] Re: gamut conversion through the LUT ?!
- » [argyllcms] Re: gamut conversion through the LUT ?!
- » [argyllcms] Re: gamut conversion through the LUT ?!
- » [argyllcms] Re: gamut conversion through the LUT ?!
- » [argyllcms] Re: gamut conversion through the LUT ?!
- » [argyllcms] Re: gamut conversion through the LUT ?!
- » [argyllcms] Re: gamut conversion through the LUT ?!
- » [argyllcms] Re: gamut conversion through the LUT ?!
- » [argyllcms] Re: gamut conversion through the LUT ?!
- » [argyllcms] Re: gamut conversion through the LUT ?!
[granted that the graphics card supports shaders at all], but if hardware video playback capabilities of the graphics card are utilized, then my understanding is that shaders cannot be used, but only unspecific adjustments like e.g. "brightness", "contrast", "saturation", "hue" are possible [and nobody knows what these adjustments are really doing, in colorimetric terms, and how they interact].
- [argyllcms] gamut conversion through the LUT ?!
- From: lee scratchy
- [argyllcms] Re: gamut conversion through the LUT ?!
- From: Gerhard Fuernkranz
- [argyllcms] Re: gamut conversion through the LUT ?!
- From: lee scratchy
- [argyllcms] Re: gamut conversion through the LUT ?!
- From: Hal V. Engel
- [argyllcms] Re: gamut conversion through the LUT ?!
- From: lee scratchy
- [argyllcms] Re: gamut conversion through the LUT ?!
- From: Gerhard Fuernkranz