ADLINK Technology RTV Series User Manual page 82

After stopping grabbing, the background color of focus value win-
dow is black. The x-axis size is the width of the whole image. The
window is shown below:
If the image is chromatic and is RGB type, there are three curves
represented red, green, and blue individual in the chart. The win-
dow is shown below:
72 ViewCreatorPro Utility