GE Amersham Imager 680 Operating Instructions Manual page 189

Step
4
5
Amersham Imager 680 Operating Instructions 29271308 AB
Action
Select Subtract to subtract the background.
Result: The lane profile view is displayed with the background subtracted.
To view the result in any lane, select the lane number to view in the drop
down menu.
When you are done select the Next button or select the Bands button in the
workflow. The Previous button will bring you back to the previous step.
5 Operation
5.8 Analyze the image
5.8.2 Background Subtraction
189