Flanders Scientific LM-0750W User Manual page 12

Function Menu (continued)
Assignable Functions (continued)
Measurement
This function allows you to get precise real time YRGB measurements of any point or area within your incom-
ing signal. To toggle this feature on/off simply press the function key you have assigned to the Measurement
function to display a movable crosshair onscreen. With the Measurement function on you can use the H
POS and V POS rotary knobs to position your crosshair over the point within your source that you would like
to measure. To reset the vertical or horizontal position of your crosshair back to center simply press down on
the corresponding rotary knob. You may also use the REF POS rotary knob to select the size of the sampling
area for the measurement data (from a single pixel to a much larger area where the values will be an average
of all pixels within your defined sample area). As you move the crosshair your Measurement data will update
in real time. The Measurement function is available in a 10 bit mode or 8 bit mode and will provide you with
the following data in real time:
Line and Sample (Identifies position of your crosshair)
Y (Luminance as an absolute value between 0-255 for 8 bit and 0-1023 for 10 bit)
Y% (Luminance level expressed as percentage)
R% (Red level expressed as percentage)
G% (Green level expressed as percentage)
B% (Blue level expressed as percentage)
R (Red level as an absolute value between 0-255 for 8 bit and 0-1023 for 10 bit)
G (Green level as an absolute value between 0-255 for 8 bit and 0-1023 for 10 bit)
B (Blue level as an absolute value between 0-255 for 8 bit and 0-1023 for 10 bit)
You can also press the REF POS rotary knob to set a reference position onscreen. Once your reference po-
sition is set it will be indicated on screen by a separate crosshair and you will be able to move the active
crosshair to obtain a real time readout of your current and reference positions as well as a separate readout
of the precise difference between current and reference locations. Please note that your reference position is
both a spatial and temporal reference meaning that the values indicated on screen for the reference are for
that point on screen at the moment you set the reference.
Pressing the F Stop rotary knob button allows you to set your current crosshair position as an F-Stop Refer-
ence and view differences between this current position and your reference position as an F-Stop value. The
F-Stop reference feature is independent of the REF POS feature. The F-Stop reference value will always be
based on the levels of your current active crosshair position at the precise moment when the F-Stop knob is
pressed.
The crosshair color will follow the color selected for markers from the
the Measurement function's crosshair change the Marker color.
Marker
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Menu. To change the color of
© 2012 Flanders Scientific, Inc.