Digital BW, The Print

Hello Dennis,

>Did you ensure that your target file-size produced an image whose 
>dpi at your target print-size was an integral fraction of the 
>printer/printer-driver's native resolution?
> 
>The reason I ask this is that driver/printer-firmware resampling of 
>an image _might_ highlight the anomalies produced by different 
>up-sizing algorithms in different ways, perhaps emphasizing the 
>failings of an essentially superior method while effectively 
>suppressing the failings of an inferior one.

It's a good point, and no I didn't aim for a paticular resolution. 
I've seen many references to that over the years, with widely varying
opinions as to how important it is.  My own experiments showed that it
made no discernable difference in print quality, so I've never
bothered with it.  But it's very possible that in the case of resizing
it may play an important role.  I can say that in the case of the over
processed look of the Photozoom test it looked overprocessed on screen
before sending it to the printer.

But I think this is an excellent point and when I do the next one I'm
going to try it both ways and see if I can see any difference.  Thanks
very much.


 
>I really appreciate you doing these tests and introducing me to Jack 
>Flesher's workflow. It looks like a major implication of your tests 
>is that the most important thing is to do all the work, including 
>initial sharpening, at native resolution before resizing.

Seems that way.  If you do some testing please report your results
here.  There is still the question of whether the principle will apply
to all images.


Regards,
Clayton


Info on black and white digital printing at    
http://www.cjcom.net/digiprnarts.htm