VCC-SXCXP3M Rev. 905-0049-00
©2017 CIS Corporation. All rights reserved.
16
8.6 Shading Correction
This is a function to correct the peripheral brightness lowering caused by the lens and others used.
AnalogControl
ShaddingCorrection
True
False
DetectShading
(Execute)
･
Detect Shading
Shoot a uniform object such as a pattern box, to full screen, then execute DetectShading, to calculate and save the
correction data automatically in the camera.
* When detecting shading, please make sure that ROI and sub-sampling settings are OFF.
* If DetectShading is executed with no video output at trigger mode operation, it cannot operate properly.
To operate DetectShading properly, a trigger signal shall be input within 200ms after execution.
･
Shading Correction
Turn ShadingCorrection ON to start shading correction according to the shading correction data prepared by
DetectShading function.
◆
Before Shading Correction
◆
After Shading Correction
8.7 Black Level adjustment
AnalogControl
BlackOffset
0
～
255
・
The initial setting value is 20.
・
Black level is adjustable with relative values. When it is increased by 1, its luminance level changes by approx. 0.25
at 8 bit output, and it changes by approx. 1.0 at 10 bit output.
・
When the lower values than the initial value are set, saturation level would not achieve to the maximum value for
output range.
