Color Question

[Leisha Wharfield]

For graphics, I use CorelDraw, which has extensive color palletes that 
can be expressed in RGB or other common color formulas. CorelDraw 
displays a grid of colored squares very similar to what you describe 
generating to find the right hue. I click on the color I want, get the 
RGB value, & plug it into whatever other application I need.

Leisha

James Intriligator wrote:

>Lena -->  one thing worth keeping in mind is that different
>monitors/computers will display (255,255,0) very differently.
>  An easy way to see this is to try displaying the same thing on:
>  - a CRT monitor
>  - a CRT monitor that has the brightness/contrast turned way down
>  - an LCD monitor seen "straight on"
>  - an LCD monitor seen "from the side"
>You may find that each one will appear very different.
>For many experiments this will not matter too much.
>
>BUT, if you are worried about it, you have 3 options:
>  (1) trial and error:  just try different values and find the one that
>looks like what you want.
>  (2) What I have done in the past is to have the program draw/label lots of
>different variants at the same time.  For example:  have it draw a 10 by 10
>grid of coloured squares where changes on the x-axis are changes in red
>(235, 237, 239,...255) and changes on the y-axis are changes in green (235,
>237, 239,...255).   So the bottom-left square would be:  (235,235,0) and the
>top-right would be (255,255,0). You should be able to find one of these 100
>choices that looks like what you want.
>  (3) you could get very nerdy and calibrate your monitor.  This may require
>you to make measurements, estimate gammas, create lookup tables, and other
>complex things.
>
>  **** I wonder if anyone in e-prime world has addressed colour calibration
>stuff?  Anyone willing to share?
>
>  -james
>
>
>On 14/9/05 06:18, "Richard P. Heitz" <gte016z at mail.gatech.edu> wrote:
>
>  
>
>>Yes, that's an RGB value.  And, I just checked to be sure - 255, 255, 0
>>appears to be a pretty bright yellow.
>>
>>Katz, Lena B. wrote:
>>    
>>
>>>I'm playing around with Ccolor, and when I put in (255,255,0), i don't see a
>>>true yellow.  Does anyone know if this is in RGB?  Or am I perhaps using the
>>>wrong scale entirely?
>>> 
>>>Thanks!
>>> 
>>>Lena
>>>      
>>>
>
>------------------------------------------------
>James Intriligator, PhD
>Senior Lecturer
>
>School of Psychology - Experimental Consumer Psychology
>University of Wales - Bangor
>Brigantia Building - Room 328
>Bangor, Gwynedd LL57 2AS
>Wales, UK
>
>Tel: +44 (0)1248 383630
>Fax: +44 (0)1248 382599
>email: j.intriligator at bangor.ac.uk
>------------------------------------------------
>
>
>
>
>
>  
>
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