Pull request: morphology fix
Stéfan van der Walt
stefan at sun.ac.za
Tue Oct 18 15:18:00 EDT 2011
Hi Tony
On Sat, Oct 15, 2011 at 1:58 AM, Tony Yu <tsyu80 at gmail.com> wrote:>
The open/close operations aren't that bad: they just shift features.
But,
> when calling white/black tophat operations, the shifting can lead to
> over/underflow of pixels. I've attached examples of the lena image after
> calling white tophat, both before and after the fix. The underflow should be
> apparent in the first image.
Thanks for investigating and fixing this subtle bug. Talking about
data-types, we should gradually move towards using the data type
helper utilities, and thereby avoid possible over and underflow
issues.
Regards
Stéfan
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