Dalsa Linea Color CL User Manual page 50

2. Contrast Enhancement
The offset and gain features can be used to maximize the use of the output dynamic range.
Typical use is to subtract the minimum pixel value expected and then gain up to the
maximum pixel value to approach full scale. This process may be useful for applications that
process the RGB colors individually.
Offset
Gain
White Balance over ROI
Use the Balance White Auto command to predetermine a region of the image that is known
to be white and to perform a white balance for the whole image based on this region.
White balance ROI
Offset
50 
1. Single value added to each pixel
2. Range -32 to +31 DN
3. Positive values may be used to measure dark noise
1. Floating point digital multiplier applied to each pixel
2. Range 1x to 10x
Figure 23: White Balance Over ROI
White balance ROI
Width
4. Camera Operation