The Wikipedia article I referenced in an earlier posting in this thread
is really quite comprehensive, including 3-d diagrams of how this
is conceptualised.
I generally find the algorithms on Wikipedia are very useful in
this sort of case, as, am not going to get out my slide-rule and
work out the whole jingbang for myself - this life being too short.
Frankly, as a simple type of chap, who only prints out coloured
stuff rarely, I am perfectly happy with RGB.
I just got piqued when somebody esle was writing about HSV (err, HSB ???)
and so on, and thought "I wonder if I can do that?" as, honestly, had a very
unstimulating few days (went to a funeral, helped in Bulgaria's
parliamentary
elections . . . need I say more) and felt a need to stretch the mind a spot.
Learned about:
statRound (have you ever come across that one before?)
mouseColor
so can't all have been bad. :)
Randall Reetz wrote:
Oh, i get it. Min and max allows the range as Hue is relative to this range
between min and max RGB values and their average within the full range
determines S and thus V.
-----Original Message-----
From: "Randall Reetz" <[email protected]>
To: "How to use Revolution" <[email protected]>
Sent: 7/5/2009 10:44 AM
Subject: RE: Convert RGB to HSV
Just thinking... but by light mixing physics it would seem that Hue would simply be some
three-matrix sum, S would be the sum of R,G, and B devided by the range for any one of them, and V
just that total range minus S. Is all of this "min" and "max" just some sort
of maths shortcut? Maybe this is a way of figuring the range between R,G, and B? Seems
unintuitive as it obfuscates the real relationships involved. What am i missing?
-----Original Message-----
From: "Richmond Mathewson" <[email protected]>
To: "How to use Revolution" <[email protected]>
Sent: 7/5/2009 8:45 AM
Subject: Re: Convert RGB to HSV
Well, well, well . . . digging around in the Documentation I discovered
statRound (having fallen foul of 'round');
http://mathewson.110mb.com/FILEZ/COLORNAMER.rev.zip
still feeling a bit 'funny' about those negative S values . . .
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