Extracting bar code label and overview image from MRXS slide

[jcupitt at gmail.com]

On 3 August 2014 08:07, Benjamin Gilbert <bgilbert at cs.cmu.edu> wrote:
> On 08/01/2014 10:30 PM, Tom N. wrote:
>> This is the slide that I used in the test.
>
> Well, you were absolutely right, and your particular slide had nothing
> to do with it.  The good news is that it's not an OpenSlide bug.  :-)
>
> When reading associated images, VIPS has to convert from premultiplied
> ARGB in one 32-bit integer to non-premultiplied RGBA in individual 8-bit

Oops, sorry, I missed this mail.

Here's a patch for vips to fix this, it'll be in the next release, due
in a few days.

https://github.com/jcupitt/libvips/commit/385b2ea5fab7ff568f1ac36ce195d7949a2eaf7c

Thanks for finding this dumbness.

John