Instead of using the Detect Object to find all the LEDs, you could have the Detect Object look for one LED at a time in a region. If an object is found, use the center of mass to to build a more exact region and do a measure color on that. If the LED isn't found, you could log an error, or look for the next LED to inspect. I attached a modified example that has an array of approximiate positions (initialized in the setup state...go to the setup state by selecting View>>View Complete Inspection Setup and clicking on the Setup state shown on the left hand to see the step that initializes this).
Based on these approximate positions, a Detect Object looks for a single LED and if it's found, use the center of mass to build an exact region and measure the color in this region.
Hope this helps,
Brad
