6.6.7 Subtract
Background...
If the brightness (background) of the image changes in a certain direction, make
correction for this change.
•
Whole Plane
Corrects the tilt of the entire image as a single plane.
Clicking OK starts correction.
•
Select Plane
Corrects the tilt of a square area specified by the mouse, as a single plane.
Clicking OK starts correction.
•
DC Offset
Computes the offset of the brightness of the overall screen, and corrects it.
Clicking OK starts correction.
•
Non Linear X
This function corrects the image using a polynomial approximation if the image is
curved in the X direction. Specify the degree of the polynomial equation using
Polynomial Degree. You can specify a degree between 3 and 9.
Clicking OK starts correction.
•
Non Linear Y
This function corrects the image using a polynomial approximation if the image is
curved in the Y direction. Specify the degree of the polynomial equation using
Polynomial Degree. You can specify a degree between 3 and 9.
Clicking OK starts correction.
•
Line Averaging
This function corrects the following kinds of images by fitting the average value
obtained for each line in the X direction as the average value of the height over the
entire screen.
Clicking OK displays a Threshold bar chart, so specify the height range over which
the average is to be computed, while referring to the preview. Clicking OK in the
bar chart starts correction.
In almost all cases, there is no need to set Threshold.
Z
Z
Original
Corrected
Threshold
Threshold
6-32
TMPM5200-2
