[sane-devel] problems with scanimage to pdf

[ken]

On 02/03/2015 03:21 PM, Carsten Jensen wrote:
> I'm wondering why your converted image is in little-endian and the rest
> are big-endian.

If you can read it, then I'd guess that all the apps I used can also 
read it, in which case you'd think they'd have coded in ways to deal 
with it.  So if that's the cause of the problem, shouldn't it be 
considered a bug?



> you might want to provide wich kind of computer you're using, whats the OS.
> and how did you install Imagemagick, as it seems that is the reason for
> the problem.

$ uname -r
2.6.18-400.1.1.el5.centos.plus
$ cat /etc/redhat-release
CentOS release 5.11 (Final)
$ rpm -qi ImageMagick
Name        : ImageMagick                  Relocations: (not relocatable)
Version     : 6.2.8.0                           Vendor: CentOS
Release     : 15.el5_8                      Build Date: Mon 07 May 2012 
02:45:36 PM EDT
Install Date: Tue 05 Jun 2012 12:17:14 PM EDT      Build Host: 
builder10.centos.org
Group       : Applications/Multimedia       Source RPM: 
ImageMagick-6.2.8.0-15.el5_8.src.rpm
Size        : 11701413                         License: freeware
Signature   : DSA/SHA1, Mon 07 May 2012 05:06:55 PM EDT, Key ID 
a8a447dce8562897
URL         : http://www.imagemagick.org/
Summary     : An X application for displaying and manipulating images.
Description : .....

ImageMagick probably came with the standard CentOS install.  Judging by 
the date above, I'd say there was an upgrade back in 2012.  You probably 
know it already, but CentOS is basically a clone of Redhat.

I'm running this on an old Dell laptop.


>
> Try using other programs to manipulate your image to eliminate thich
> application causes the problem.
> i.e. use gimp to rotate and save again.
>
>
>
> On 03-02-2015 20:45, ken wrote:
>> Using scanimage seems to produce faulty tiff files.  When I then try
>> to create a pdf out of those, the pdf isn't even readable (by xpdf).
>>
>> Here's the script output.  Lines beginning with '+' are the commands
>> which are run:
>>
>> -----------------------------------
>> $ scan
>> + scanimage -x 215 -y 279 -l 0 -t 0 --batch=file%02d.tif --format=tiff
>> --mode Color --resolution 300 --source Duplex
>> Scanning -1 pages, incrementing by 1, numbering from 1
>> Scanning page 1
>> Scanned page 1. (scanner status = 5)
>> Scanning page 2
>> Scanned page 2. (scanner status = 5)
>> Scanning page 3
>> Scanned page 3. (scanner status = 5)
>> Scanning page 4
>> Scanned page 4. (scanner status = 5)
>> Scanning page 5
>> scanimage: sane_start: Document feeder out of documents
>> + mv file02.tif tmp.tif
>> + convert tmp.tif -rotate 180 file02.tif
>> convert: tmp.tif: Bogus "StripByteCounts" field, ignoring and
>> calculating from imagelength. `TIFFReadDirectory'.
>> convert: tmp.tif: Read error on strip 204; got 0 bytes, expected 7608.
>> `TIFFFillStrip'.
>> + rm tmp.tif
>> + mv file02.tif tmp.tif
>> + convert tmp.tif -rotate 180 file02.tif
>> + tiffcp file01.tif file02.tif file03.tif file04.tif file.tif
>> TIFFReadDirectory: Warning, file01.tif: Bogus "StripByteCounts" field,
>> ignoring and calculating from imagelength.
>> TIFFFillStrip: file01.tif: Read error on strip 204; got 0 bytes,
>> expected 7608.
>> file01.tif: Error, can't read strip 204.
>> + tiff2pdf file.tif
>> file.tif: 0: Invalid strip byte count, strip 204.
>> tiff2pdf: Error on decoding strip 204 of file.tif.
>> tiff2pdf: An error occurred in converting TIFF file.tif to PDF -.
>> + xpdf file.pdf
>> Syntax Error: Couldn't read xref table
>> Syntax Warning: PDF file is damaged - attempting to reconstruct xref
>> table...
>> Syntax Error: Couldn't find trailer dictionary
>> Syntax Error: Couldn't read xref table
>> + ls -l file01.tif file02.tif file03.tif file04.tif file.pdf file.tif
>> -rw-rw-r-- 1 zl zl 1552272 Feb  3 14:35 file01.tif
>> -rw-rw-r-- 1 zl zl 3134320 Feb  3 14:36 file02.tif
>> -rw-rw-r-- 1 zl zl 1552272 Feb  3 14:36 file03.tif
>> -rw-rw-r-- 1 zl zl 1552272 Feb  3 14:36 file04.tif
>> -rw-rw-r-- 1 zl zl     726 Feb  3 14:36 file.pdf
>> -rw-rw-r-- 1 zl zl 1553932 Feb  3 14:36 file.tif
>> + file file01.tif file02.tif file03.tif file04.tif file.pdf file.tif
>> file01.tif: TIFF image data, big-endian
>> file02.tif: TIFF image data, little-endian
>> file03.tif: TIFF image data, big-endian
>> file04.tif: TIFF image data, big-endian
>> file.pdf:   PDF document, version 1.1
>> file.tif:   TIFF image data, little-endian
>> -----------------------------------
>>
>> So what's the problem?
>> tnx
>>
>
>