Forums > Jitter

Find only 1 blob based on threshold

February 24, 2010 | 9:29 pm

Hi,

I’m trying to figured out how can i extract only 1 blob from a binary image, i based the detection whit an op object just to filter the other blobs, like a threshold.
If someone have time to help me out :)

Thanks

Luis Marques

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February 25, 2010 | 1:10 am

Hi! ;)
With frame subtraction you get a very unstable image because framesub measures the amount of movement/change in a image so its hard to track a precise blob.
Check this, I hope it helps.

Best wishes!

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February 25, 2010 | 1:46 am

hi,

thanks for the reply! great example. but extracting the coordinates now is impossible, due to the lack os cv.jit.label before the cv.jit.blob’s…
Any solution? Applying the cv.jit.label after the op==1, will fix it?

Thanks

Luis Marques


February 25, 2010 | 4:01 am

Hi!
You’re right!
Only worked with cv.jit.centroid.

Best wishes!

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