Groups > comp.lang.java.programmer > #3878

Re: RGB vs HSV

From	Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand>
Newsgroups	comp.lang.java.programmer
Subject	Re: RGB vs HSV
Followup-To	comp.lang.java.programmer
Date	2011-05-10 10:16 +1200
Organization	Geek Central
Message-ID	<iq9p4d$7ur$1@lust.ihug.co.nz> (permalink)
References	<iq7ho7$sv1$1@lust.ihug.co.nz> <iq7q5d$b2u$1@dont-email.me>

Followups directed to: comp.lang.java.programmer

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In message <iq7q5d$b2u$1@dont-email.me>,  wrote:

> On 5/8/2011 6:58 PM, Lawrence D'Oliveiro wrote:
> 
>> Wikipedia has formulas for the conversion. Or you can use code like the
>> HSVA class here
>> <https://github.com/ldo/ti5x_android/blob/master/src/GraphicsUseful.java>.
> 
> 
> I found this, the algorithm seems a bit more compact than yours.  Might
> want to give it a look:
> 
> <http://cs.haifa.ac.il/hagit/courses/ist/Lectures/Demos/ColorApplet2/t_convert.html>

In what way more compact? The RGB-to-HSV seems to involve just as many
comparisons (not counting the special case, where they return an out-of-
ange value, while I don’t), and the hue calculation is written out three
times, instead of just once. HSV-to-RGB seems to be no more simple than my
version.

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Thread

RGB vs HSV Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-09 13:58 +1200
  Re: RGB vs HSV markspace <-@.> - 2011-05-08 21:22 -0700
    Re: RGB vs HSV Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-10 10:16 +1200
  Re: RGB vs HSV "Gavino" <invalid@invalid.invalid> - 2011-05-10 20:18 +0200
    Re: RGB vs HSV Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-11 13:59 +1200
      Re: RGB vs HSV "John B. Matthews" <nospam@nospam.invalid> - 2011-05-11 00:59 -0400
        Re: RGB vs HSV Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-11 17:25 +1200

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