Beginner question: analyze particles with screenshot (blurred wired effect)

I apply “analyze particles” to the following binary image

but i obtain an understimate number of particles 130 over 250 with the following count mask.

the top part is blurred and i believe that the particles on the top side are not counted.
What am i doing wrong?

thanks to all

solved. I’m not able to count :frowning: my fault sorry