Re: [Jocr-devels] Bug - No contrast in image causes division by zero

[Joerg S. <Joe...@UR...>]

If I interpret the output right, the static lib was build successfully 
(cd src;make libPgm2asc.a). The shared lib failed only.
See 
http://www.gentoo.org/proj/en/base/amd64/howtos/index.xml?part=1&chap=3
its complicated even to me and the reason to throw it away on 0.46.
It works on my PC (x86 32bit gcc-4.0). You should try compiling everything 
using -fPIC and tell if it works, otherwise check all .o files if the code 
is Position-Independent. I dont know how. May be using file or nm like:

file src/pgm2asc.o
src/pgm2asc.o: ELF 32-bit LSB relocatable, Intel 80386, version 1 (SYSV), not stripped
                               ~~~~~~~~~~~
looks ok to me. What do you get?

Regards, Jrg.

On Mon, 30 Mar 2009, Igor Filippov [Contr] wrote:

> Dear Joerg,
>
> I've tried building the libPgm2asc.a library in 0.47 (by the way - thank
> you for adding it back), but no success so far. Attached is the output
> of "make libs". Am I missing something obvious?
>
> Thank you,
> Igor
>
>
>
> On Sun, 2009-03-29 at 17:48 +0200, Joerg Schulenburg wrote:
>> thanks for the report. Will be fixed in 0.47
>>
>> Joerg
>>
>> On Wed, 25 Feb 2009, Mark Hammond wrote:
>>
>>>> When an image with no contrast is processed, the thresholding function
>>>> in otsu.c divides by zero:
>>>
>>> ...
>>>
>>>> Attached is a test image that causes the problem and a proposed patch
>>>> to fix it.
>>>
>>> I can confirm this; the spambayes project is using gocr to try and detect
>>> image spam, and the gocr process crashed attempting to scan the attachments
>>> to this message - which is the first time I've seen happen :)
>>>
>>> Cheers,
>>>
>>> Mark
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA
>>> -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise
>>> -Strategies to boost innovation and cut costs with open source participation
>>> -Receive a $600 discount off the registration fee with the source code: SFAD
>>> http://p.sf.net/sfu/XcvMzF8H
>>> _______________________________________________
>>> Jocr-devels mailing list
>>> Joc...@li...
>>> https://lists.sourceforge.net/lists/listinfo/jocr-devels
>>>
>>>
>>
>> ------------------------------------------------------------------------------
>> _______________________________________________
>> Jocr-devels mailing list
>> Joc...@li...
>> https://lists.sourceforge.net/lists/listinfo/jocr-devels
>