Is there a tool to extract colors at regular intervals along a curve or line?

Question

I have an image on which I would like to sample colors. It could look like this (it's the Novamind logo) :

I'm looking for a tool that could define a path ( Bézier, circle, regular polygons, for example), set the number of samples I want, and output the colors found along the path in various formats. I' not looking for a Photoshop plug-in, but more something like the DigitalColor Meter on OS X; it's a simple color picker.

Answer 1

There are some great general color analyzers out there but nothing I know of that will perform this kind of specific test. I'm sure you could do it with Illustrator via Scriptographer, if you're ambitious enough ;)

Just for kicks, try out the Firefox plug-in Rainbow and see if you get close to what you're after.