Mirax image wrapping

ajwood at mta.ca ajwood at mta.ca
Thu Jul 11 12:58:00 EDT 2013

Yes, I can replicate it with openslide-write-png. The only difference  
is that the jpeg from my converter is black where the png from  
openslide-write-png is transparent.

And worse yet, converting at the next slide level (6) happens to move  
the tissue around such that the problem might go unnoticed! See  
http://i.imgur.com/pqvXYHm.png for conversions of 4, 5 and 6 (note  
that the images from my original post were levels 3, 4 and 5).

- Andrew

Quoting Adam Goode <adam at spicenitz.org>:

> Can you replicate the problem with openslide-write-png? You might not
> be handling the alpha channel.
> On Thu, Jul 11, 2013 at 11:33 AM,  <ajwood at mta.ca> wrote:
>> Hi All,
>> I wrote a mirax-to-jpeg converted using openslide, and I just came
>> across a nasty bug.
>> See http://i.imgur.com/HCuqttZ.png for conversions at levels 8, 16 and 32.
>> I can't find any problems in my code, so is there any chance it's a
>> bug in OpenSlide? Or should I probably think think a little harder on
>> my converter implementation? Has anyone seen anything like this before?
>> Thanks,
>> Andrew
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>> openslide-users at lists.andrew.cmu.edu
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