[argyllcms] Re: printtarg question
- From: Fabrizio Levati <fabrizio.levati@xxxxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Wed, 21 Jul 2010 22:29:07 +0200
Nikolay Pokhilchenko wrote:
> Fabrizio Levati wrote:
>
>> I was just wondering what could be the reason beyond printtarg changing the
>> reference values in the resulting ti2 file, when the -t option is used.
>
> The -t option means the 8-bit per channel tiff encoding, so the thing is
> rounding to nearest nighbour value at 8-bit scale.
>
> Y=ROUND(X/100*255)/255*100
>
> X=10 Y=10.196078
> X=11 Y=10.980392
> X=11.15 Y=10.980392
>
> It's just simple linear 8bit per pixel channel encoding.
>
As simple as the first thing I should have thought of...
Thanks
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