Re:Mathematicians should stop naming things after each other
by quickthrower2 on Saturday September 05, 2020 @05:17PM
(#24386905)
And conversely why are photoshop filters even called filters!
[ Parent
| on HN ]
Re:Mathematicians should stop naming things after each other
by jldugger on Saturday September 05, 2020 @05:36PM
(#24387046)
Presumably because these exist: https://en.wikipedia.org/wiki/Photographic_filter
Re:Mathematicians should stop naming things after each other
by Trombone12 on Saturday September 05, 2020 @06:10PM
(#24387253)
The point being made is that photoshop manipulates matrices and filters are circles made of translucent material you put on your camera; and in fact many of those photographic filters don't primarily filter light but rather distorts it in some desired fashion. "Transformations" would be much more accurate.
Re:Mathematicians should stop naming things after each other
by 317070 on Sunday September 06, 2020 @05:26AM
(#24390111)
In signal processing, those transformations have always been named filters. It goes way back to the early 1900s
Re:Mathematicians should stop naming things after each other
by magicalhippo on Saturday September 05, 2020 @10:11PM
(#24388446)
I always presumed it came from signal processing[1].
[1]: https://en.wikipedia.org/wiki/Filter_(signal_processing)