Machine Vision

[Selp]

I am having issues creating a VI that inspects the pixtel intesity within a given rectangle.

One of the problems I have is that in between the solar cells (see picture attached) there is a lead that appears black under SWIR imaging. So I would need two rectangles to inspect the system, and I havent been able to succeed in creating such program.

The second issue I have, I need a VI that checks within the rectangle(s) region specified all the pixel intensity. If there is an amount of pixels that is not within that region (broken solar cell), assign a fail inspection. (see attachement).

Any help would be appreciated

Thanks

[lcady · Accepted solution]

You should look into the Histogram tool.  I've attached a VI as an example.  It doesn't solve your ROI question, but it shows how to cut out the area as a rectangle.

Here's an image of the results of the histogram.  You could use the "Mean Value" as a measure of good/bad.

[Silver_Shaper]

Hey which function are you used? Check this which gives you the pixel intensity info on a defined rectangle.