8.Features
© 2023 China Daheng Group, Inc. Beijing Image Vision Technology Branch 164
8.4.7.2.
Read/Save Coefficient
Read coefficient: The saved correction coefficient can be read from the device
Save coefficient: Save the current FFC coefficient to the device. The coefficient can still be saved
after the camera is powered down
Available for part of the camera models: models that implement FFC in the camera. Other models
are grayed out.
8.4.7.3.
Load/Save File
Load from file: Load the saved FFC coefficient file (format: .ffc) from the file
Save to file: Save the current factor to the FFC coefficient file (format: .ffc)
8.4.7.4.
Precautions
The FFC coefficient is associated with the camera's features such as ROI, Binning, Decimation and
Reverse X/Y. When the relevant parameters change, users need to perform FCC again to obtain the FFC
coefficient. Otherwise, the correction data may be inconsistent with the current FFC coefficient, resulting
in invalid FFC or unusual image.
For example: If FCC has been performed at a certain resolution and FFC coefficient has been written to
the device, if you need to adjust ROI or set Binning (Decimation), Reverse X/Y and other parameters, you
can follow the following steps:
1)
Switch the FFC switch from on to off.
2)
Stop the acquisition, modify the ROI to the expected value or set Binning (Decimation), Reverse X/Y
and other parameters.
3)
Start the acquisition, open the FFC plugin, and execute FFC coefficient calculation and save in order.
At this point, the FFC can be used normally under the new FFC coefficient.
8.4.8.
Noise Reduction
During the digitization and transmission of an image, it is often disturbed by the noise of the imaging device
and the external environment, which will cause the image with noise. The process of reducing or
suppressing the noise in the image is called image noise reduction.
Adjust the noise reduction value can adjust the noise reduction intensity of the camera on the image. The
adjustment range is 0-4.0. The larger the value, the higher the degree of noise reduction.
Noise reduction feature: determine whether to enable noise reduction. ON means that the noise reduction
feature is enabled. And OFF means that the noise reduction feature is disabled.