[argyllcms] Re: targen options
- From: Gerhard Fuernkranz <nospam456@xxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Fri, 18 Mar 2005 22:35:11 +0100
Graeme Gill schrieb:
>In theory I suppose so, although if the device is that
>badly behaved that it is noticeably inaccurate a few
>delta E away from a given neutral axis, I'm not sure
>there is much hope for it.
>
Btw, I found the test prints I had archived.
You can take a look at http://home.arcor.de/gfuer/tmp12116/
In the device RGB image sent to the printer driver, the gray
wedge on the left side has pretty smooth RGB gradients.
But in scanned_print1.jpg you can see horiziontal stripes,
i.e. the printed color changes rapidly as a function of the
gray level (at the dark end there is a color "jump" at approx.
every 2 RGB levels). Since these stripes only occur in color
gradients, and not in areas with a uniform color, it is evident
that they are caused by the printer's color response (and not
e.g. congested nozzles).
Hopeless?
(Actually I'm disappointed that professionals write such
a rugged printer driver - I cannot imagine that such flaws
were not avoidable. I do not think, that e.g. gimp-print
behaves as badly. Unfortunately it has no support for
my printer in high-resulution photo mode.)
Regards,
Gerhard
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- [argyllcms] Re: targen options
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- From: Gerhard Fuernkranz
- [argyllcms] Re: targen options
- From: Graeme Gill
- [argyllcms] Re: targen options
- From: Gerhard Fuernkranz
- [argyllcms] Re: targen options
- From: Graeme Gill
- [argyllcms] Re: targen options
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- [argyllcms] Re: targen options
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