VC Camera Link series
Page 58 of 86
RA14-11A-010
8.18 Dark Image Correction
CMOS sensor may result in lower sensitivity at dark level. This is caused by fixed pattern noise variation
depending on the exposure settings or characteristic change according to the temperature variation of AFE and
sensor cell. Sensitivity change resulted by temperature variation is less than 1
㏈
/10 degree. The acquisition
condition of correction data is 25 degree based on the camera case temperature. To acquire optimized image at
user environment, it is recommended to perform dark image correction after the camera is installed and the
temperature of the camera is stabilized.
VC-25MC-30 and VC-25MC2-30 do not support dark image correction.
8.18.1
Sequence of Dark Image Correction
How to Correct Dark Image using Configurator
1.
Prevent penetration of light into the camera image sensor.
2.
Click the
Generate Data
button in the
View
tab to generate correction data.
3.
Click the
Save Data
button to save correction data in the flash memory. The saved data will be applied to
the camera automatically when the camera is turned on.
Figure 8.24 Dark Image Correction on Configurator
How to Correct Dark Image using Serial Command
1.
Prevent penetration of light into the camera image sensor.
2.
Use the terminal command
“gop” to generate correction data in the camera.
3.
Use the terminal command
“sop” to save correction data in flash memory.
Summary of Contents for vieworks LVC-25MC2-30
Page 1: ......
