Table of Contents
Advertisement
• Main scan gamma
Main scan gamma options are only visible when Nikon Scan
is being used as a TWAIN source or acquire plug-in for an-
other program (when Nikon Scan is used as a stand-alone
application, preview gamma automatically applies both to the
preview image and to the final scan). Image data passed to
the host application are modified according to the option
chosen here. Three options are available:
The gamma value chosen for preview gamma is applied be-
fore the data are passed to the host application. Use this
setting when the host application does not support indepen-
dent gamma settings and you want the final image to be
modified for display on your monitor.
Reference: Preferences
Use preview gamma
In some environments, a value for gamma can be chosen in
the host application and passed to the Nikon Scan plug-in.
When Use application gamma is selected, this value is
applied to the main scan data before they are passed to the
host application.
Two conditions must be fulfilled if this option is to be effec-
tive. First, the interface between the application and Nikon
Scan must allow the gamma value to be passed to the Nikon
Scan plug-in. The TWAIN interface used under Windows
does not, however, allow the gamma value to be passed to
the TWAIN source (i.e., to Nikon Scan). Consequently, in
the Windows version of Nikon Scan a default value of 2.2 is
used for main scan gamma whenever Use application
gamma is selected. Second, the application must support
gamma transfer. If Use application gamma is selected
with a Macintosh application that does not support this fea-
ture, Macintosh system gamma (1.8) will be used.
When this option is selected, a value for main scan gamma
can be entered in the text box.
Use application gamma
Use custom gamma
122
Advertisement
Table of Contents
