scott wrote:
> Because if you give your monitor (or pretty much any monitor) 64,64,64,
> it's not 4x dimmer than 255,255,255.  You need to give it 136,136,136
> (or whatever) to get that.


That is true!

I have a visually calibrated LCD screen using this page and test chart:

http://www.normankoren.com/makingfineprints1A.html#gammachart

My monitor gamma seems to be in order (around 2.2). And it really means
that in order to get half luminance of pure white, I have to use RGB =
186,186,186 - as opposed to 123,123,123.

So yes, I have to start using gamma correction from now on. Thanks.

Now I have to figure out a better way to define object color. As
specifying it RGB= 180,100,100 gives a totally different output. Idea, I
could just do a inverse gamma correction to those values first....and
yes, it seems to work just right.

Severi

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