21 October 2014

Filtered Photo Photo Addendum

Enough about smoking and cigarette filters (Cigarette-Filter Capacitors). There are so many other kinds of filters we could talk about. In academia, I dealt a lot with photographic filters and much less with digital image processing filters. 

In an early blog post (Time to Scan Photographs), I wrote about scanning and tweaking photos with what was then my new junior Photoshop. I still use that package and still haven’t touched most of its tools, including those labeled “Filters." 

Preparing today’s addendum, I finally took time to play…research the filters. For some, the filter’s name left no doubt what to expect (e.g., blur). Some others I recognized from image processing (e.g., equalize, high-pass). 

See what you think about the effects of the filters I applied to the same photograph, one I took at the 2014 AirVenture (The Fly-in). I used Photoshop’s default filter settings unless otherwise noted. Unfortunately the effects of many of the other filters were too subtle to be seen with the low resolution photos used for the blog post.

One of the light sport aircraft I saw at EAA’s AirVenture. Dubbed “Fifi,” the plane was filling in for its namesake, the Boeing B-29A Superfortress, which was on display at last year’s AirVenture.
Georges-Pierre Seurat, the Post-Impressionist, could have saved so much time if he had the pixelate--pointillize filter.
The brush strokes--accented edge filter was one of several that produced a paint-by-the-number effect.
Compare this photo--the result of applying the default setting of the artistic--cutout filter--with the next photo.
For this photo, I applied the artistic--cutout filter with a higher edge simplicity.
I had to lighten the photo produced with the default setting of the artistic--water color filter.

I can’t judge how well the artistic--underpainting filter substitutes for a base layer.
The artistic--palette knife filter produced an interesting effect, though unlike any art palette I’ve ever seen.
I thought the distort--polar coordinates filter produced a great time-warp effect.
The distort--glass filter effect was that of looking through a frosted glass or an icy window.
Vertigo? Imbibed a bit too much? Oh yeah, it all comes back with the distort--twirl filter.

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