Solution:

Thresholding is the simplest segmentation method.

The pixels are partitioned depending on their intensity value Global thresholding using an appropriate threshold T:

$$ \begin{array}{ll} g(x, y)=1 & \text { if } f(x, y)T \\ 0 & \text { if } f(x, y) \leq T \end{array} $$

It is called …