Digital BW, The Print

Doug,

I was also stuck for some time wondering what this Delta E was all about.
Apparently (that is especially for Harvey), Delta E is a measure of the
difference between two colours. Delta is the maths symbol for 'change in'
and E apparently comes from the German word 'Empfindung' meaning 'difference
in sensation'. An article at
www.popphoto.com/HowTo/ArticleDisplay.asp?ArticleID=103
gives more details and the formula calculated from the differences in Cielab
L, a, & b values.

Even better, at www.colorspan.com/support/tools/deltae.asp you can enter the
Lab values of two colours and up pops the Delta E value! So you can change
L, a, & b values and see what sort of differences a Delta E of 1 or 3 or 10
really means.

Bob Frost.

----- Original Message -----
From: "Doug I." <doug@...>

. She threw out some stat about "delta E" being reduced
> from I believe 8-something in the 2000 to 2-something in the new printers.
> Perhaps the brainier list members can explain what, if anything, this
means.