Re: [Pixman] [PATCH v13 10/14] pixman-filter: Gaussian fixes

2016-03-04 Thread Bill Spitzak
On Fri, Mar 4, 2016 at 3:39 PM, Søren Sandmann wrote: > > > On Wed, Feb 10, 2016 at 1:25 AM, wrote: > >> From: Bill Spitzak >> >> The SIGMA term drops out on simplification. >> > > But SIGMA has a meaning here: it's the standard

Re: [Pixman] [PATCH v13 10/14] pixman-filter: Gaussian fixes

2016-03-04 Thread Søren Sandmann
On Wed, Feb 10, 2016 at 1:25 AM, wrote: > From: Bill Spitzak > > The SIGMA term drops out on simplification. > But SIGMA has a meaning here: it's the standard deviation for the normal distribution corresponding to the Gaussian in question, so unless there