Perform a histogram

NI Vision Assistant

Perform a histogram

Main Tab

  1. In the Step Name control, enter a descriptive name for the step.
  2. Verify that the Reposition Region of Interest option is enabled if you want to link the region of interest specified in this step to a previously defined coordinate system.

    Link the region of interest to a coordinate system if the position of the object under inspection changes from image to image, and you need to adjust the position of the region of interest to match the new location of the object.

Histogram Tab

  1. If you want to perform a histogram for a portion of the image, select an ROI tool and draw an ROI on the image. The histogram displays data for the currently selected region.
  2. Click OK to add the step to the script.
Note  The Histogram function analyzes the image and displays information for you to review. This function does not modify the image.
Tips  
  • To display the histogram for the entire image after you selected an ROI or to delete the selected ROI, click the image or press the <Delete> key.
  • If you want to save the histogram data, click the Send Data to Excel button or the Save Results button.