You should be able to subtract median3 from medianFilter(3) in Faust and
get 0 as the optimized output - Julius
On Sun, Jan 9, 2022 at 1:49 AM Dario Sanfilippo <sanfilippo.da...@gmail.com>
wrote:
> Hello, Julius and Alik.
>
> I'm new to median filters but we should be able to use the recently added
> sorting algorithm for arbitrary window lenghts; does the following look
> correct to you?
>
> import("stdfaust.lib");
> windowLen = 11; // it should be odd for symmetry
> medianFilter(L, x) = (x <: par(i, L, @(i))) : ro.bubbleSort(L) :
> ba.selectn(L, int(L / 2));
> process = no.noise <: _ , medianFilter(windowLen);
>
> Ciao,
> Dr Dario Sanfilippo
> http://dariosanfilippo.com
>
>
> On Sun, 9 Jan 2022 at 10:28, Julius Smith <julius.sm...@gmail.com> wrote:
>
>> Hi Alik,
>>
>> This came up for me at some point:
>>
>> // Test order 3 median smoother:
>>
>> median3(a,b,c) = select3(s,b,a,c)
>> with {
>> cf(a,b) = 2*(a<b)-1;
>> s=abs(cf(a,b)+2*cf(b,c)+3*cf(c,a))/2;
>> };
>>
>> process = median3(1,2,3), median3(1,3,2), median3(2,1,3), median3(2,3,1),
>> median3(3,1,2), median3(3,2,1); // 2
>>
>> Cheers,
>> Julius
>>
>> On Sun, Jan 9, 2022 at 12:51 AM Alik Rustamoff <alikthen...@gmail.com>
>> wrote:
>>
>>> What is the way to make a median filter in faust?
>>>
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>>
>>
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>
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