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The illustration below shows the role Nikon CMS plays in the
scanning process. CMS profiles are shown in blue, user opera-
tions in red.
When Nikon CMS is on, uncalibrated RGB image data from the
scanner are converted to grayscale, CMYK, or calibrated RGB,
depending on the color model selected in the scan window.
CMYK data are processed according to a user-specified CMYK
profile, while RGB data are processed according to the profile
selected for the calibrated RGB color space. These data are
stored in memory so that the color model can be changed with-
out performing another preview scan. Any changes you make
using the color enhancement and Unsharp Mask tools also ap-
ply to these data. When the image is displayed in the preview
window, the monitor profile is used to ensure that the preview
image is as true as possible to the data in memory.
Before Preview
Scanner Extras
3
Digital ICE
Analog Gain
Scanner
input
profile
Media-type selection
Color model and
profile selection
Reference: Preferences
The Scanning Process
Preview
preview
Color-space
New color-
profile
space profile
Changes to
color model
or profile
When the Scan button is clicked to perform the final scan, the
scan data are processed according to the selected color-space
profile and any changes that were made using the color en-
hancement and Unsharp Mask tools in the scan window. The
data are then transferred to the host application or opened in
image windows in Nikon Scan. Where possible, the color-space
profile is transferred to the host application together with the
image data. The TWAIN interface used in Windows, however,
does not allow profiles to be passed to another application, with
the result that under Windows the profile is only transferred to
the host when Nikon Scan is used as a stand-alone application.
(note that profile information is lost when the image is saved in
a format such as BMP that does not allow the profile to be
recorded). When images are displayed in Nikon Scan image
windows, the monitor profile is used to ensure that the image
on the screen reflects the original as closely as possible.
Image Processing
Monitor
Curves
profile
Color Balance
LCH Editor
Unsharp Mask
Monitor
profile
Scan
scan
Processed Tab
Natural Tab
Host
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