Omron Z550 Operation Manual page 131

Filter
The profile data can be made smoother if it is infected with noise.Smoothing is performed in the
position direction.
Option
None (Set at No smoothing.
shipment)
Average 2, 4,8, 16, Smoothing is performed using the average value of adjacent data. The values to
32, 64 the left indicate the number of data to be averaged over.
Median 1, 2, 3 Smoothing is performed using the median value of adjacent data.
It is effective in removing spikes of noise.
The sampling period varies depending on the filter processing.
Noise Removal
This is used to prevent height measurement errors caused by irregular reflection. Images with
less than the specified number of pixels will be regarded as noise and excluded from the
measurement.
An image generated through diffused
reflection is wrongly measured (1 pixel).
0 pixel, 1pixel (set at shipment), 2 pixels, 3 pixels, 4 pixels, 5 pixels, 6 pixels,
7 pixels
Setting Measurement Conditions (Expert Menu)
Meaning
Specify three pixels or less to be treated
as noise in order to measure the height
accurately.
Option
SECTION 3
Z550
129
Operation Manual