[sane-devel] Sane and TIFF

[Gerard Klaver]

On Wed, 2006-11-15 at 10:56 +0100, Claudio wrote:
> Hello, I'm writing a client in the C language which uses the libsane
> library. The basic idea, at the stage i'm in, is to write code to copy
> scanimage's behavior. It's supposed to get the scanned data and write it
> to stdout in tiff format.
> I'm having some troubles with the tiff header: i'm using stiff.c I found
> in the backends' package  to write the header of the file. The problem
> I'm having is that the tiff file is practically malformed (test opening
> it with the gimp). So i hijacked the stiff library and put a fprintf and
> exit right after the header is created. Here's what i get for the same
> page from the original scanimage and my code:
> 
> < scanimage >
> 
> width 5056 height 9000 depth 8 resolution 600
> 
> < my code >
> 
> width 5399 height 9000 depth 8 resolution 600
> 
> doing a binary diff on the two headers i realize that (of course) they
> are different (same size though). I cannot really understand the problem
> as the stiff code is untouched and my code is practically equivalent to
> test.c
> 
> My question is: why does my code get a different width than scanimage as
> we are both using data from sane_get_parameters()? I guess the problem
> will be solved in the moment i find an answer to this question.
> 
> I'll send my code to those who request it (less than 200 lines).
> 
> I'm using an HP LaserJet 3055 with hplip 1.6.9 on ubuntu edgy, sane
> 1.0.14.
> 
> TIA
> 
> Claudio Martella
> 
> P.S.= for the moderator: I've sent a copy of this email with another
> address and should be waiting in your queue for acceptance. Please, drop
> it.
> 
> 

Maybe is bugreport the reason? [#303752] Maybe faulty icc-profile-file
length detection








-- 
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m.vr.gr.
Gerard Klaver