'Get closest value array in array of arrays.' follow up help.

[DreamingInsanity]

I has definitely worked -
Old code:

New code:

There is a pretty big performance difference though.

This is not only an interesting problem but also a difficult one:
Have a good read about this matter here.

The post you provided is actually quite interesting. I feel like the YUV colour space could actually be quite useful for this - for both what I am trying to do - and possible speed wise as well.