Lucy24@... wrote:
> The moral behind all this is that the meeting between mathematics and visual
> art is not nearly as simple & elegant as, say, that of mathematics and music.

I realize that "subjective gray" and "objective gray" may look different.
That's why the first one is called subjective.

Is there an "objective" gray?

Keep in mind my end use in not art or graphics.
My goal is some sort of measure of opacity or conversely total light
transmitted (luminosity).


Sorry for the X-FB digression

-- 
Pierre A. Zippi
+++++++++++++++++++++++
Home email: paz@...
Home web: http://web2.airmail.net/paz