From kde-kimageshop Sun Nov 26 21:45:08 2006 From: "Mikhail Lyossin" Date: Sun, 26 Nov 2006 21:45:08 +0000 To: kde-kimageshop Subject: Re: HDR plan in krita Message-Id: <106113e30611261345v7b886bacq2cc5682154f30ca3 () mail ! gmail ! com> X-MARC-Message: https://marc.info/?l=kde-kimageshop&m=116457831601752 MIME-Version: 1 Content-Type: multipart/mixed; boundary="--===============1167734918==" --===============1167734918== Content-Type: multipart/alternative; boundary="----=_Part_113950_10699852.1164577508978" ------=_Part_113950_10699852.1164577508978 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline On 11/26/06, Kai-Uwe Behrmann wrote: > > Cyrille, > > you mention ICC colour management in CinePaint for HDR. It is a display > only corretion. Colour conversion is still missing. As far as I know there is no existing standard for a floating point colorspaces, so that explains why it's missing in lcms. I think it'd be good to start from some exist and widely used colorspace as base, sRGB for example, and adapt it to floating point (remove gamma curves from it, leaving white balance as it is in sRGB) ------=_Part_113950_10699852.1164577508978 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline On 11/26/06, Kai-Uwe Behrmann <ku.b@gmx.de> wrote:
Cyrille,

you mention ICC colour management in CinePaint for HDR. It is a display
only corretion. Colour conversion is still missing.

As far as I know there is no existing standard for a floating point colorspaces, so that explains why it's missing in lcms. I think it'd be good to start from some exist and widely used colorspace as base, sRGB for example, and adapt it to floating point (remove gamma curves from it, leaving white balance as it is in sRGB)

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