how to detect solar cells

[Jawad@]

Hello Sir,

I am trying to detect an solar cell. I have taken images by using Electromluminescence imaging process however I am confused with what is boundaries of cell and why it is necessary and how can I detect the cell with using a picture. please guide me through. 

thanks 

[NIquist]

Post your VI and an image or two.  We can't help you with what we can't see...

[Jawad@]

To detect the cell out of image. I thought, histogram could be a good step to take however again i dont know how to detect the solar out of the image. can you guide me please. I have attached an example of image as well. Provide me any example which can be useful for me. 

Thanks 

[Jawad@]

Hello, 

Sorry I forgot to request could you please provide me an example of 2011 version as I am using this version. 

[Jawad@]

sorry in my last reply, I didn't upload the image. 

Thanks 

[NIquist]

I'm using LV2010 so I can open your VIs.  Do you have the Vision Assistant package or just NI-Vision?  The Assistant would make this very easy.  If you need to use the Vision primitives look into edge detection and/or the IMAQ Detect Shapes VI.  You image is a white square on a black background, it should be very easy to detect it.  If you do have the Vision Assistant you can use it like a wizard to play around with your images and see the results of the detection tools as you modify the various parameters in each tool.

[NIquist]

I was going to suggest you move this to the Machine Vision forum and I see you have.  Here's the link so others can follow:

http://forums.ni.com/t5/Machine-Vision/how-to-detect-solar-cell-out-of-image/td-p/2307174

[Jawad@]

OK. Thanks for advise let me try these useful VIs and vision assistant and will come back to the thread when stuck anywhere. 

[Jawad@]

Hello,

Thanks for advice, I have made an vi which is actaully detecting the rectangular but now I am confused how to draw the detected image on my front panel. Please guide me through. Please.. I tried to understand the Vision assistance but it was very complicated for me.

thanks