Threshold to rectangle

[IAlex]

How to apply

threshold to the allocated area of a picture (to rectangle)?

Thanks

[DJ_L.]

Hey IAIex,

I see you have posted this same question on the following post: How do write an image threshold to single rectangle?.

It looks like Logic has helped you with this. Please let me know if this is a new question, and I will help you out further. But if this is the same question, in the future, please try to refrain your specific question to one post. Thanks, and have a great day.

Regards,

DJ L.