Here is an optical illusion I generated with Inkscape. I created this file some years ago and found it recently while cleaning my archives.
Using a contrast trick it appears that circles are in motions. Click on the image below to get a full-size preview:
And as the title say, you can download my original SVG source file (released under a Creative Commons BY-SA license).
Great illusion! Did you recreate an existing illusion or is this an invention? I remember discovering it about 6 years ago and it’s still very impressive!
That’s a well known optical illusion. I don’t know its name or origin.
I think I’ve discovered this on the web after being inspired by a visit to an art fair featuring some optical painting in 2004. I may have replicated it with the project of printing a giant poster in mind (hence the SVG).
Well, your version is great!
This optical illusion amazes me everytime I see it. I think it is Akiyoshi KITAOKA who creates this kind of images. I found this website on the web: http://www.ritsumei.ac.jp/~akitaoka/index-e.html
Thanks James ! Looks like you’ve uncovered the original source of this work. Great find !