Black Level - Basler ace acA640-90gm User Manual

Standard Features

10.2 Black Level

Adjusting the camera's black level will result in an offset to the pixel values output by the camera.
Increasing the black level setting will result in a positive offset in the digital values output for the
pixels. Decreasing the black level setting will result in a negative offset in the digital values output
for the pixels.
All Models (Except acA2500-14
If the camera is set for a pixel data format that yields 8 bit effective pixel depth (Mono 8, Bayer BG
8, YUV 4:2:2 Packed, YUV 4:2:2 (YUYV) Packed, an increase of 64 in the black level parameter
setting will result in a positive offset of 1 in the digital values output for the pixels. And a decrease
of 64 in the setting will result in a negative offset of 1 in the digital values output for the pixels.
If the camera is set for a pixel data format that yields an effective pixel depth of 12 bits per pixel
(Mono 12, Mono 12 Packed, Bayer BG 12, Bayer BG 12 Packed), an increase of 4 in the black level
parameter setting will result in a positive offset of 1 in the digital values output for the pixels. A
decrease of 4 in the setting will result in a negative offset of 1 in the digital values output for the
pixels.
acA2500-14 Only
If the camera is set for a pixel data format that yields 8 bit effective pixel depth (Mono 8, Bayer BG
8, YUV 4:2:2 Packed, YUV 4:2:2 (YUYV) Packed), an increase of 16 in the black level parameter
setting will result in a positive offset of 1 in the digital values output for the pixels. And a decrease
of 16 in the setting will result in a negative offset of 1 in the digital values output for the pixels.
If the camera is set for a pixel data format that yields an effective pixel depth of 12 bits per pixel
(Mono 12, Mono 12 Packed, Bayer BG 12, Bayer BG 12 Packed), an increase of 1 in the black level
parameter setting will result in a positive offset of 1 in the digital values output for the pixels. A
decrease of 1 in the setting will result in a negative offset of 1 in the digital values output for the
pixels.
Basler ace GigE 189