A. den Oudsten wrote:
Op 08-12-10 15:04, Claus Cyrny schreef:
Hi,
after editing a photograph of a girl
I downloaded for free from Stockvault,
I printed it out at a local drugstore
(on one of those Kodak stations), but
unfortunately the print contained a
pattern of fine stripes. The woman in
the drugstore told be that this must be
due to to file. To test this, I printed
the photograph out at another store of
the same chain, but the stripes were
still present, albeit not as strong as in
the first print.
My question: Did anyone experience this
as well, and what can I do to avoid this in
the future? I really zoomed in on the file
(I'm using Gimp 2.6.7, and my display is
gamma-corrected), but I couldn't detect
any stripes.
The file can be found here:
http://home.arcor.de/ccyrny/images/posing-girl_03_15x20.jpg
Thanks for any recommendations,
Claus
--
Flickr
<http://www.flickr.com/photos/claus_01/5121520814/#/photos/claus_01/5121520814/lightbox/>
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I see the stripes as well, but also a horizontal shift, as if there
are two foto's.
The shift is intentional. Regarding the stripes: I found out that this
is a gamma issue.On my
(gamma-corrected; gamma = 1.0) display the stripes are not visible. If I
reduce the
gamma to 0.5, the image becomes visibly darker, and then I can see the
stripes as well.
The Kodak system on which I printed the file has no gamma correction,
either--thus the
stripes. I made a simple image file to check the gamma of the Kodak
system, in order
to find the proper correction value. Then I'm hoping that the stripes
should disappear.
Thanks to all who responded.
Claus
--
Flickr
<http://www.flickr.com/photos/claus_01/5121520814/#/photos/claus_01/5121520814/lightbox/>
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