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>From: andrew kelley <leetslacker@gmail.com>
>Reply-To: "Microcontroller discussion list - Public." <piclist@mit.edu>
>To: "Microcontroller discussion list - Public." <piclist@mit.edu>
>Subject: Re: Image filtering question
>Date: Mon, 30 May 2005 00:43:31 -0400
>
>Well, the filter kinda sorta worked.. It more functioned as an edge
>detect on the areas instead of what I wanted... I'll try a ANN
>tomorrow.. My wife Ashley just had a beautiful baby girl (Dakota Rose)
>on 5/29 @ 1:57pm so I'm kinda tired out(and so is both of them)
>
>--
>andrew
>
>On 5/29/05, andrew kelley <leetslacker@gmail.com> wrote:
> > An algorithm would be nice.. But I think I found a way to do it..
> >
> > use a filter like this (the laser scans horizantally)
> >
> > float filtconsts[9]=
> > {-1/6,
> > -1/6,
> > -1/6,
> > .1/6,
> > 2/3,
> > 1/6,
> > -1/6,
> > -1/6,
> > -1/6};
> >
> > multiplied by the vertical pixels.. So if you add all the
> > constants(uniform color), you get 0.  if you have a value near the
> > middle of the Y, the value falls through (> 0), if its a patch above
> > or below center, it comes out <= 0.
> >
> > Or I'll train a NN to evaluate it so it will pass \ / - | patterns and
> > reject all others..
> >
> > andrew
> >
> > On 5/29/05, William Chops Westfield <westfw@mac.com> wrote:
> > > >>>> What sort of filter would I use to eliminate large areas of 
>uniform
> > > >>>> color but keep smaller areas?
> > > >>>>
> > > Just to clarify, are you looking for an algorithm, or the name of one
> > > of the commonly available "filters" (or "effects") in a high-level
> > > program
> > > like photoshop?
> > >
> > > BillW
> > > --
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>
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