Balluff MATRIX VISION mvBlueFOX Series Technical Manual page 118

110
Note
Flat-field correction can also be used as a destructive watermark and works for all f-stops.
To make a flat field correction following steps are necessary:
1. You need a plain and equally "colored" calibration plate (e.g. white or gray)
2. No single pixel may be saturated - that's why we recommend to set the maximum gray level in the brightest
area to max. 75% of the gray scale (i.e., to gray values below 190 when using 8-bit values)
3. Choose a BayerXY
4. Set the (Filter-) "Mode = Calibrate"
5. Start a Live snap ("Acquire" with
6. Finally, you have to activate the correction: Set the (Filter-)
7. Save the settings including the correction data via
Active Device Settings"
(Settings can be saved in the Windows registry or in a file)
Note
After having re-started the camera you have to reload the capture settings vice versa.
The filter snaps a number of images (according to the value of the
averages the flat-field images to one correction image.
in "Setting - Base - Camera -
(Figure 4)
"Acquisition Mode = Continuous"
GenICam - Image Format Control -
"Mode = On"
"Action - Capture Settings -
CalibrationImageCount
PixelFormat".
)
Save
, e.g. 5 ) and
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