Measure Intensity Concepts

NI Vision Builder

Check for Presence Measure Features Tab

Measure Intensity Concepts

The Measure Intensity step computes the intensity statistics of pixels within a region of interest in the image. The step determines the histogram of the intensity values of the pixels in the region of interest and then computes intensity statistics, such as the mean intensity value, the standard deviation, and the minimum and maximum pixel intensities.

The default region of interest tool is a rectangle. However, you can choose any of the region of interest tools to precisely select a region of interest. Correctly selecting a region of interest is important because pixels of no interest inside the region of interest can affect the intensity statistics drastically.