Minor bug with Aperio Images with fractional objectives

Benjamin Gilbert bgilbert at cs.cmu.edu
Mon Mar 21 23:26:09 EDT 2016

On Tue, Mar 22, 2016 at 02:57:30AM +0000, Derek Magee via openslide-users wrote:
> This is a minor bug as the only images with non-integer objectives I've
> ever seen were generated by me, but with Aperio .svs if the objective
> (i.e.  AppMag) is non-integer openslide.objective-power is not output by
> openslide as part of the output of openslide_get_property_names(). 
> ImageScope simply rounds these to integer.  Happy to provide such a file
> if people think it's worth fixing (I can probably work around it).

Hi Derek,

Yep, OpenSlide parses AppMag as integer, and doesn't add the generic
property if parsing fails.  How did you produce the affected slides?  Were
they actually scanned with non-integer objectives?

--Benjamin Gilbert

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