Doesn't look like a high pass filter to me. On February 4, 2019 8:48:48 PM PST, "Daniel J. Matyola" <danmaty...@gmail.com> wrote: >"which is essentially close to what is mathematically taking the 1st >derivative of the multi-dimensional function (or 3-D surface in >some colors), and overlaying it with the original image." > >That's easy for you to say. > >Dan Matyola >http://www.pentaxphotogallery.com/danieljmatyola > > >On Mon, Feb 4, 2019 at 12:47 PM Igor PDML-StR <pdml...@komkon.org> >wrote: > >> >> >> That's a great image! >> >> I am just curious if it was just finding the right color >mapping/mixing, >> or you also did something like "find the edge" filter in PS, >> which is essentially close to what is mathematically taking the 1st >> derivative of the multi-dimensional function (or 3-D surface in >> some colors), and overlaying it with the original image. >> >> >> Igor >> >> >> On Sun, Feb 3, 2019 at 8:29 AM Boris Liberman wrote: >> >> > It turns out that finding the desired b/w rendering can be real >fun... >> > >> > Have a click: >> > >https://pentax-ways.blogspot.com/2019/02/2019-07-like-pencil-sketch.html >> > >> > Thanks. >> > >> > -- >> > Boris >> >> -- >> PDML Pentax-Discuss Mail List >> PDML@pdml.net >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> to UNSUBSCRIBE from the PDML, please visit the link directly above >and >> follow the directions. >> >-- >PDML Pentax-Discuss Mail List >PDML@pdml.net >http://pdml.net/mailman/listinfo/pdml_pdml.net >to UNSUBSCRIBE from the PDML, please visit the link directly above and >follow the directions.
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