Measure Colors Concepts

The Measure Colors step computes the color statistics of pixels within a region of interest in the image. The step determines the histogram of the pixel color values for the selected color space in the region of interest. Measure Colors works for the RGB, HSL, CIE L*a*b*, and CIE XYZ color spaces. Refer to the NI Vision Concepts Manual for information about color spaces.

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 significantly.