The "usual" JPEG (not JPEG2000) is indeed 24 bit format, 8 bits/color.
I have never heard of printers (non-exotic) that would print 16 bit/color. So printing JPEG would give you an image as good as it gets. Of course, assuming you are not talking about JPEG artifacts here. OTOH, if you edit your images first, tweaking the color balance, curves/levels, etc, 16 bit gives a huge advantage. If you do it in 8 bit/color mode, you may easily run into problems with the "colour depth thing", and that will most definitely show on the prints. I normally do all the edits in 16 bit mode, and convert to JPEG only when I am absolutely happy with the final result. Best, Mishka -----Original Message----- From: "William Robb" <[EMAIL PROTECTED]> To: "Pentax Discuss" <[EMAIL PROTECTED]> Date: Fri, 19 Mar 2004 08:44:11 -0600 Subject: JPEG Question > > I am still trying to get my head around the JPEG colour depth thing. > > Anders (I believe) mentioned that a Jpeg is 8 bit per colour, for a > total of 24 bit colour. > > I can do the math, and can see that this should be very good colour > depth (256x256x256=16777216). > > My question however is, since it is still 8 bit per colour, is the > Jpeg file still really limited in fine colour delineation because it > is limited to 256 discreet shades per primary colour? > > My reason for asking is that what I see coming off my digital printer > at work has obviously inferior colour depth to the work coming off > the optical printer. > > Thanks > > William Robb > > >
