VC-5MC-M/C110H User's Manual
Page 69 of 109
9.10
Flat Field Correction
The Flat Field Correction feature improves the image uniformity when you acquire a non-
uniformity image due to external conditions. The Flat Field Correction feature of the VC-5MC-
M/C110H camera can be summarized by the following equation.
IC = IR / IF
IC:
Level value of corrected image
IR:
Level value of original image
IF:
Level value of Flat Field data
In actual use conditions, generate a Flat Field correction data and then save the data into the
non-volatile memory of the camera by following the procedure below.
1.
Execute the
Flat Field Data Generate
parameter.
After executing the
Flat Field Data Generate
parameter, you must acquire one image to
generate the scaled down Flat Field correction data.
2.
Use the
Flat Field Data Selector
parameter to specify a location to save the generated Flat
Field correction data.
3.
Execute the
Flat Field Data Save
parameter to save the generated Flat Field data into the
non-volatile memory. When the scaled down Flat Field data are used for correction, they
are expanded and applied with a Bilinear Interpolation as shown in the
To disregard the generated Flat Field correction data and load the existing Flat Field
correction data, execute the
Flat Field Data Load
parameter before executing the
Flat
Field Data Save
parameter.
4.
Set the
Flat Field Correction
parameter to
On
to apply the Flat Field data to the camera.
Caution!
It is recommended that you enable the
Defective Pixel Correction
feature before executing
the
Flat Field Data Generate
parameter.
Before executing the
Flat Field Data Generate
parameter, you must set the camera as
follows:
OffsetX, Y: 0
Width, Height: Maximum values
After executing the
Acquisition Start
command, you need to operate the camera with the
free-run mode or apply a trigger signal to acquire an image.
