What is "Value" in HSV?

Become a member of the CGSociety

Connect, Share, and Learn with our Large Growing CG Art Community. It's Free!

Thread Tools Display Modes
  07 July 2010
What is "Value" in HSV?

Hey all,

I'm trying to figure out what the viewer indicator for "Value" is really telling me. That thing at the bottom of the viewer. It's showing me the R, G and B values, as well as H,S,V and L. Lightness gives me the average of RGB, as it should. An RGB value of 0.5 however, returns V=0.74, while a RGB=0.21404 returns me a V=0.5.

Putting down a new Constant node with the V set to 0.5, gives me a 0.74 in the viewer.

I'm guessing there's some gamma:ing going on somewhere. What am I missing?

edit: oh, and I'm talking about 16-bit images, if that matters.
The Pirate
Duplicator Series

Last edited by marcuso : 07 July 2010 at 12:28 AM.
  07 July 2010
wikipedia is your friend:
  07 July 2010
Thread automatically closed

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.
CGTalk Policy/Legalities
Note that as CGTalk Members, you agree to the terms and conditions of using this website.
Thread Closed share thread

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Society of Digital Artists

Powered by vBulletin
Copyright 2000 - 2006,
Jelsoft Enterprises Ltd.
Minimize Ads
Forum Jump

All times are GMT. The time now is 10:14 PM.

Powered by vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.