National Instruments IMAQ Vision for LabWindows TM /CVI - Manual (Page 41)

Chapter 3 Making Grayscale and Color Measurements
IMAQ Vision for LabWindows/CVI User Manual 3-12 ni.com
Figure 3-9. Using Multiple Regions to Learn Color Distribution
Choosing a Color Representation Sensitivity
When you learn a color, you need to specify the sensitivity required to
specify the color information. An image containing a few, well-separated
colors in the color space requires a lower sensitivity to describe the color
than an image that contains colors that are close to one another in the color
space. Use the sensitivity parameter of
imaqLearnColor() to specify the
granularity you want to use to represent the colors. Refer to the Color
Sensitivity section of Chapter 5, Performing Machine Vision Tasks , for
more information about color sensitivity.
1 Regions Used to Learn Color Information
1