Yahoo Groups archive

Digital BW, The Print

Index last updated: 2026-04-28 22:56 UTC

Message

Re: Qimage & ABW mode ...

2008-10-25 by Gary Gervin

Steve,

I have always used the ABW mode when printing from Qimage.  I can't
comment on comparisons with Photokit Sharpener, since I've not used
that tool.  I do think you should try the Qimage demo and see for
yourself how it does.  You will see that ABW mode is no problem.  (If
you do try it, maybe you should let us know how the two products
compare in sharpening.)

I will also mention that my images are large, greyscale mode .tif's
with multiple unflattened layers, and none of that presents a problem
when printing from Qimage either.

I am supposing your reference to RGB came from Ernst's comment that
Qimage "knows nothing other than RGB."  He wrote it in the context of
using Qimage to print to file so that I could use the resultant file
in QTR.  Since I know that Qimage does work with greyscale .tif's as
input, I imagine that he was referring to the file output by Qimage
when printing to file.  Since I haven't tried the print to file
function yet (in the middle of developing and scanning right now), I
haven't verified that Qimage puts out only in RGB.  But in any case,
you don't need to convert images to RGB or give up ABW to experiment
with Qimage.


-Gary Gervin





--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "steveabrink"
<steveabrink@...> wrote:
>
> I would to really like try Qimage for the benefits discussed, 
> however, because I usually use the ABW mode, I would have to switch 
> to the RGB B&W mode.  Even though I cannot see any discernalbe 
> differnce beween the two modes, measurements have indicated a small 
> 0.3 increase in Dmax, and a very small difference in metamerism.  
> Still, it might be worthwhile to switch...? 
> 
> Also, I wonder if the there is really improved sharpness as compared 
> to using Pro Photo Zoom S-spline interpolation for uprezzing and 
> Photokit Sharpener?  That combo does a great great job.  And this is 
> for relativley small increases in interp file size (not 6 foot 
> prints but more like 20x30 in  tack sharp...) when using a 5D as 
> capture...  
> 
> SteveB 
>

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.