Chromasens CD40127_R02 allPIXA_pro_User Manual.docx
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5
Define the area where the reference values should be calculated (b)
If it is not possible to cover the full scanning width with a white reference target (for example
due to mechanical conditions), the resulting black image borders on the left and right side
can also be substituted by extrapolated values. So the bright area is extended outward.
Specify the area from which the reference values should be calculated: in the
Y
position
box, enter the number of the first line, in the
Height
box the number of lines to
be used.
Use at least 100 lines for calculation of the reference values to eliminate noise.The
values used for the reference are calculated by averaging each column in the selected
area.
Sample image if the white reference target only partially covers the field of view of the
camera:
Mark the edges of the white reference
:
In the
Settings for extrapolation
area, select the
Active
check box.
Specify the areas for extrapolation: In the
Left
and
Right
boxes, enter the start
positions, and in the
Width
box the width as number of pixels. Place the areas near
the left and right edge of the white reference target.
Instead of entering values for the start positions, acou can click
and then click
the respective start position on the image.
Click
OK
, and then proceed with
Step 6
.
