ni vision led panel test

[SJtest]

Hi,

I have no Labview experience and looking into use labview/ni vision to test the LED panel.

here is the detail:

The panel is about 2'x2' and have 20x20 LED (pixels). I can change the LED to diferent colors and

will try to capture the LEDs image to see if any dead, wrong color on LED.

Seem like NI vision can do the job. If yes, Please let me know how can I go from here.

Thanks,

PPham

[PelleS]

Hi,

You could for instance threshold the image to get the parts "over" a certain color to stand out. Otherwise you could use the golden template function where you compare your image with a template of a perfect image with correct LED color.

After both two examples you would get an image containing the correct LEDs as badly drawn filled circles. Then you could use a morphology function to enhance the circles appearance to be able thereafter to count them correctly.

Hope it helps. I advise you to post vision questions in the proper Machine Vision part of the forum in the future to get adequate response more easily.