Nikon LS-3500 - LS-3510 - Manual (Page 75)

Glossary 8-3
Software Reference for Scanners
calibrate to measure the results of the imaging process on a
known color/gray scale target and real life subjects.
This quantitative measurement is called
sensitometry, where we measure the values of the
input and output. We can then define a function for
the changes that are introduced by the imaging
system. This transfer function can then be used to
“calibrate” the imaging system.
CCD charge-coupled device. This is a solid state memory
unit with storage cells that can accumulate electron
charges.
CCD gain the voltage gain in the scanner's CCD circuit .
clamping level the voltage limit of the CCD output can be clamped
at a particular point, allowing the black level of the
image to be established, so that regardless of the
exposure increase, the black level stays the same.
CPU central processing unit.
cropping trimming an image.
color balancing the process of balancing the color of an image.
Scanner plugins allow the user to control color
balance in an R,G,B color model.
color models there are many ways to describe color. Color spaces
are three dimensional, that is they consist of units of
measurement along three different axis. We
generally talk about three common characteristics.