Digital BW, The Print

I'll give it a try Nick, but I dunno...

J

>

>
>
> The principle is very simple, however: in the Photoshop Page Setup dialog
> you will find at the bottom left a button labeled Transfer. Click that, and
> you find a graph box with an (initially straight-line) curve, and a series
> of fields labeled 0 through 100. These, and the curve, refer to the amount
> of ink laid down by the printer in response to the image data sent by the
> file.
>
> Here is a suggested procedure:
>
> - Set your monitor to some standard and easily repeatable condition; for
> example, you could zero the contrast and brightness controls, and zero the
> gamma in the Adobe Gamma utility. Write down these settings.
>
> - Print out a test file (a smooth gradient, a 21-step wedge, a full-range
> image, etc.) using whatever standard printer settings you have decided on.
>
> - Compare the test file to the image on screen. If the highlights in the
> test file look lighter than what's on screen, fiddle with the Transfer
> Function curve (or enter an appropriate value) to get the printer to lay
> down more ink in the highlights. Same idea for the shadows and midtones.
> This is a trial-and(mostly)-error process that no doubt could be automated
> with lots of expensive calibration hardware which I don't feel like buying.
>
> - Eventually you will end up with a transfer function that largely
> compensates for the difference between your screen image and your printer's
> behavior with a given ink and paper and with a given group of settings.
> Save and name the transfer function, and apply it every time you print with
> that ink and paper.
>
> -->  I remember reading somewhere that this can be done much more easily by
> adjusting the screen image to match a printout, then somehow _inverting_
> the resulting curve to create a Transfer Function, but now I can't find the
> reference. Anybody know how to do that?
>
> I have no idea whether any of this would work in color...
>
> -- Nick
>
> NICHOLAS HARTMANN                                +1 (414) 271-4890
> 611 N. Broadway, Suite 509                  fax: +1 (414) 271-4892
> Milwaukee, WI 53202, USA                       polyglot@...
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