Digital BW, The Print

Please forgive my limited English understanding (and expression ability)
but when one talks about a LUT I understand "a list consisting of
limited amnt. of rows consisting from actual value -> converted value",
if one talks about a transfer *function* there are no limited samples
such a LUT but a "mathematical equation giving converted values for
every possible actual values"... A tonal adjustment curve is a transfer
function not a LUT (if it were so, we would have different set of curves
for 8 and 16 bit modes - and the 16bit mode curve files' size would be
256K)

Regards,
Loris.

> -----Original Message-----
> From: Austin Franklin [mailto:darkroom@...] 
> Sent: Tuesday, July 29, 2003 4:39 AM
> To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Subject: RE: [Digital BW] Re: What is BO!!!!!? Bad odor?
> 
> ...
> Everything you describe, from what I can tell, is simply 
> tonal adjustment curve...and in simpler terms, a LUT (Look Up 
> Table)...I'm not sure why you call it "transfer function", 
> ...