Sobel / Prewitt Edge Detection

[Dan Farmer]

My first thought was the same as Chris's.

-Dan

On Tue, Apr 19, 2011 at 6:54 AM, Chris Colbert <sccolbert at gmail.com> wrote:
> Hmmm, I'm not too sure of the need for this, given that ndimage already has
> a Sobel and Prewitt filter which are implemented via separable 1D
> convolutions (and will thus be faster than a 2D convolution). I can see this
> being useful if we want to remove the dependency on ndimage at some point,
> once we have our own fast convolution routine (or just have a convolution
> that is faster that the one in ndimage). However in that case, I think these
> two filters should still be implemented as separable 1D filters.
>
> 2011/4/19 Stéfan van der Walt <stefan at sun.ac.za>
>>
>> Hi all,
>>
>> Pieter Holtzhausen made a pull request to bring over the Sobel /
>> Prewitt edge detection filters from CellProfiler.  I reviewed and
>> merged his code, alongside with the connected components changes
>> suggested last week.  You can find the changesets here:
>>
>>
>> https://github.com/stefanv/scikits.image/commit/cef53c172dd3e15dc98ddbf97a908c0f67a7283b
>>
>> Please review and comment--you input is highly valued!
>>
>> Regards
>> Stéfan
>
>