To find settings of switches based on COG?

I calculated the COG value of the image as 144.1324?How to find settings of switches based on this? please visit the following site for image?

http://vivekimages-vivek.blogspot.com/2011/06/i-find-center-of-gravity-of-switcheshow.html

Answer 1

[Walter Roberson]

For any particular switch, the COG will be on the side of the switch that is up.

However... it seems to me that you could threshold at a higher brightness level, and then the position (or centroid) of the remaining blob would be on the side of the switch that is up.

[Jim]

Thank you for your reply

can u please explain me in detail?

My task is to find the settings of the switches?

For that I calculated the cog for the whole image?

Is there any other method to find the setting of each individual switch?