X-Rite iCPlate2, User Manual

Page: 27 / 44

iCPlate2
EN
27
3
iCPlate2
3•Operation
Important:
In a regular screen, the screen ruling,
dot size and screen angle will always
be shown if the dot area has closed
dots (highlights and shadows). These
parameters are not shown for middle
tones, especially for chain dots.
The visual coverage is a ‘density’
measurement, which is not compat-
ible with any current standard and can
only be used for comparative analysis.
For density measurement, we recom-
mend using a X-Rite Densitometer
conforming to standards.
Only the dot area is usually
determined in stochastic screens.
However, use of image analysis
algorithms makes it possible to
measure individual dot sizes in
stochastic screens as well. The
dot size will be displayed if the
stochastic screen is set and screen
tones < 10% are measured. This
means the laser image quality can
be verified easily.
For regular screening in the display you will find:
DOT xx.x % Measured dot area
All or only some of the measurement results are shown depending
on the patch measured and the algorithm (regular or stochastic
screening).
You will find the status of the device settings on the lower right
section of the display (see section 3.2.3.6 for the explanation of
the symbols).
Identified screen ruling in lines/cm or lines/inch
Dot diameter in µm (based on a circular dot of the same
surface area), provided that a closed dot was present
Screen angle in °
Visual coverage