[Malvern] Colour Differences

[Richard Forster]

Phil Ironside wrote:
> Yo
> 
> We had a great meeting last night at GLUG, really enjoyed the talk from Gerd on HPC.
Oh yes. It was a good one.

> 
> Before hand we were talking about colour differences and RIck has sent this link to have a look at.
> 
> http://www.ddj.com/184404848
> 
As in how do you define a distance between two colours? How do you say 
which colour from a list is 'closest' to another. This applies to those 
photomosaic pictures and quite possibly to the recent scourge of gif 
image spam.

Rick