I can see the problem. Image has wrong information in its header. But what
to do with it? As I mentioned before, I create context source by another
script (PHP script) and php runs context. I have thousands of images so it
is impossible to me every single image convert. But I created php gate
which try convert images on the fly. When I try this particural image
convert it gives me this image:
http://cdn-images-squared.tripomatic.com/e46c68903d2c4445f05a0369578c17dd-270.jpg
But after context runs this file it falls down with error message:

!LuaTeX error: reading JPEG image failed (no JPEG header found)
 ==> Fatal error occurred, no output PDF file produced!

mtx-context     | fatal error: return code: 70

Which is even worse, because although the user gets bad PDF it contains
some information. In this case there is no pdf created. I looked in gimp
for something bad in this image, but it looks ok to me.
So do you have any advice what to do?
Thanks

2012/11/26 Martin Schröder <mar...@oneiros.de>

> 2012/11/26 luigi scarso <luigi.sca...@gmail.com>:
> > It has 240x160 pixels and 1ppi, so it's 6,096 meters x 4,06400meters
>
> I doubt that 1ppi is intended. :-)
>
> Best
>    Martin
>
> ___________________________________________________________________________________
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>
> maillist : ntg-context@ntg.nl /
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> wiki     : http://contextgarden.net
>
> ___________________________________________________________________________________
>
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the 
Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
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