Particle separation: Blob & Line

[iglav]

Hello all,

here is my problem: I have to determine & separate particles, but sometimes I end up in the situation when the image is shifted from the initial background used for subtraction, thus resulting in something like on the image attached - after subtracting the background, thresholding and applying mask.

Tings to mention:

1 - the "line" is not straight;

2 - the particle touches "line" strongly, so that 4-connectivity does not help

3 - IMAQ Separation didn't work as well.

4 - it is binary, threshoded to the maximal possible not destroying the particle

5 - Erosion 2 even 3 does not work here, higher is not possible - it might destroy the other small particles to be detected

Any ideas hot to programmatically cut the particle from the line and remove the line afterwards?

Many thanks in advance!

Ilya

[Christoph_D]

DO NOT POST IN THE THREAD

this is a duplicate of http://forums.ni.com/t5/Machine-Vision/Particle-separation-Blob-amp-Line/m-p/3662935