Nikon 9235 Reference Manual - Page 54

Digital ROC and Digital GEM, Digital ROC, Enable Post Processing, Redraw

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Page 54 highlights

Grain Equalization and Management (GEM) Digital GEM, a tool for digitally reducing the effects of film grain, is built in to 4000 ED and COOLSCAN IV ED film scanners. To use Digital GEM, turn the Enable Post Processing check-box on and then select the amount of correction to be performed using the Digital GEM slider or by entering a value in the text box to its right. The default setting is "3"; move the slider to the right to increase the effect of Digital GEM, or to the left to decrease its effect. Choose "0" to turn Digital GEM off. To view the results in the Natural tab prior to scanning, click the Redraw button. Digital ROC and Digital GEM The current status of the Digital ROC and Digital GEM checkboxes is shown in the information display in the scan window. If changes are made to these settings without redrawing the preview image, a warning icon will appear in the information display. Digital ROC and Digital GEM Because of the complexity of the processing involved, Digital ROC and Digital GEM require a substantial amount of time to perform. To speed scanning, you can disable these features before making a scan by turning Enable Post Processing off. You can also save time by making a scan without first clicking Redraw to preview the effects of Digital ROC and Digital GEM. Note that if the color model is not set to grayscale, using Digital ROC with monochrome film may introduce colors into the image. We recommend that you increase the amount of memory available to Nikon Scan or the host application to at least 128 MB when using Digital ROC or Digital GEM on a Macintosh. Reference:The Tool Chest 53

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53
Reference:The Tool Chest
Grain Equalization and Management (GEM)
Digital GEM, a tool for digitally reducing the effects of film grain,
is built in to 4000 ED and COOLSCAN IV ED film scanners.
To
use Digital GEM, turn the
Enable Post Processing
check-box
on and then select the amount of correction to be performed
using the
Digital GEM
slider or by entering a value in the text
box to its right.
The default setting is “3”; move the slider to the
right to increase the effect of Digital GEM, or to the left to
decrease its effect.
Choose “0” to turn Digital GEM off.
To view
the results in the Natural tab prior to scanning, click the
Re-
draw
button.
Digital ROC and Digital GEM
The current status of the
Digital ROC
and
Digital GEM
check-
boxes is shown in the information display in the scan window.
If
changes are made to these settings without redrawing the pre-
view image, a warning icon will appear in the information dis-
play.
Digital ROC and Digital GEM
Because of the complexity of the processing involved, Digital
ROC and Digital GEM require a substantial amount of time to
perform.
To speed scanning, you can disable these features be-
fore making a scan by turning
Enable Post Processing
off.
You can also save time by making a scan without first clicking
Redraw
to preview the effects of Digital ROC and Digital GEM.
Note that if the color model is not set to grayscale, using Digital
ROC with monochrome film may introduce colors into the im-
age.
We recommend that you increase the amount of memory avail-
able to Nikon Scan or the host application to at least 128 MB
when using Digital ROC or Digital GEM on a Macintosh.