Re: Whinging about Photoshop's Image Size

["Bob Frost" <bob.frost@cwcom.net>]

<x-charset iso-8859-1>Laurie,

I've found the discussion on what constitutes a 'pixel' quite interesting,
but I'm quite clear myself that however you define a pixel, it is not the
same as a printer 'dot'. Much confusion is caused by the misuse of dpi when
people actually mean ppi.   Digital images consist of pixels (I think!) and
we set the image resolution in Photoshop in ppi; inkjet printers print real
dots from those pixels at various dot resolutions, having maxima of 720,
1440, or 2880 dpi.

I hope you don't think this is nit-picking, as it really does cause
beginners confusion.

Bob Frost.

----- Original Message -----
From: "LAURIE SOLOMON" <LAURIE@ADVANCENET.NET>

You don't really know that anyway if you are printing with an inkjet printer
that uses stochastic dithering; all you really know is what dpi resolution
you are inputting to the printer and not what the printer is doing with it
in terms of the actual dpi that it is  printing out (according to Epson,
some of its printers are taking a 240 dpi file that is inputted to the
printer and using stochastic dithering is printing a 720,14400 or 28800 dpi
equivalent hardcopy).


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