Urgent!! Problem with output image

[Niranjhani]

Hi!

I have a video of a laser beam spot. The images contain noise. I need only the central bright portion of the image as the other circular portions are noise. After eliminating the noise I have to find the area of the spot by counting the bright pixels in the image.I have tried to execute the same but I find the output image after processing to be faulty.Ideally it should in black and red as I have done threshold. Can you help me with this ?

Also I need help with counting the bright pixels to find area .

I have tried converting the image into 1D array and then tried to add array elements.But again I find the result to be wrong.

The images in black and white are the required output images.I can find them inside vision assistant as black and red (which is the same) but when it is displayed on the front panel I do not get the same image.

 

Video_Final2.vi

Video2.avi

[Jordan Kuehn]

Create a new binary image outside the loop and feed that output as the destination for the output of your vision assistant processing.  That should stop the final image from flickering, I think this is what you are complaining about on the output.  Image wires are references, not values.

The area particle measurement should get you the value you want.  What is wrong with that?

[Niranjhani]

Thank you for your reply!

The final image has a different output when compared to the images I have attached. I am able to see the output like the ones attached when I view it inside Vision Assistant but when I run the program the output is different(It displays gray scale images).Also I am still able to see some noise in the final image but it is not present inside Vision assistant . Can you tell me what is the issue ?

Particle measurement gets me the value. But the I remember reading that it approximates to a circle/ ellipse and finds area. So I want to find the area by  adding the the number of white pixels. But I am not able to add as the array values keep changing continuously. Do you have any idea ?

I thought of appending the 1D arrays to form 2D array (each 1D is a column)and then processing the values in each column (which is each image) to obtain area. But I don't know how to do the same. 

I am a beginner in LabVIEW. 

[Jordan Kuehn]

20 hours ago, Niranjhani said:

Thank you for your reply!

The final image has a different output when compared to the images I have attached. I am able to see the output like the ones attached when I view it inside Vision Assistant but when I run the program the output is different(It displays gray scale images).Also I am still able to see some noise in the final image but it is not present inside Vision assistant . Can you tell me what is the issue ?

Did you attempt what I suggested?

[Niranjhani]

I tried creating binary image. But there is no image type called as binary available.So I am not sure how to do what you suggested.Kindly help me.

[Jordan Kuehn]

I apologize, select grayscale.  The important part is to have a separate reference, from glancing at your code. 

[Niranjhani]

I tried grayscale but there is no improvement. 

Edited August 16, 2016 by Niranjhani