[argyllcms] Re: Loosing precision converting from eps to tiff?

  • From: Gerhard Fuernkranz <nospam456@xxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Wed, 02 May 2007 22:56:50 +0200

Graeme Gill wrote:
>> with a precision of 5 numbers. In Photoshop however, there is a
>> precision of 3 numbers (at least what is visible in the info-palette).
>> What do you think, are there any rounding errors involved using this
>> method? Or, is the original rgb-numbers from the eps-file stored
>> "inside" the tiff but rounded for display in Photoshop?
> I would imagine that the raster file will be whatever depth
> has been chosen for it, ie, 8 bits/component by default.
> It may be possible to select (say) 16 bits/component for
> the raster file when it is created, giving double the
> precision, but this may depend on the version of Photoshop.
> Of course all this is moot if the printing system being used
> doesn't have a 16 bit rendering path.

Graeme, do you think it may make sense, if targen had an option to
generate only device values which are integral multiples of 100/(2^N-1)?
(where e.g. N=8, for characterizing 8-bit devices)


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