[Numpy-discussion] Open CV 3.0 + NPY_RELAXED_STRIDES
Charles R Harris
charlesr.harris at gmail.com
Wed Jun 10 23:03:02 EDT 2015
On Wed, Jun 10, 2015 at 7:02 PM, Jaime Fernández del Río <
jaime.frio at gmail.com> wrote:
> On Wed, Jun 10, 2015 at 5:53 PM, Jaime Fernández del Río <
> jaime.frio at gmail.com> wrote:
>> I'm in the midst of a Python 3.5 + MSVS 2015 compilation frenzy. Today it
>> was time for Open CV 3.0, where I found a nasty bug that I have eventually
>> tracked down to using a development version of NumPy, and Open CV 3.0
>> choking on relaxed strides, as it does a check that every stride is a
>> multiple of the itemsize.
>> I was thinking of submitting a patch to opencv to fix this, but was
>> wondering whether we have plans to eventually have relaxed strides out in
>> the wild in user releases, or is it just a testing tool for development?
> I see that in the release notes of 1.9 we had the following:
> - Relaxed stride checking will be the default in 1.10.0
> Is this still the plan?
Yes, but it won't be quite the same as the master branch. Currently an
unusual value for the stride (?) is used in order to smoke out misuse, but
that value will be more rational in the release.
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