A. Thresholding approach
Thresholding is one of the most powerful image
segmentation processes. It is a simple process. In this
method a threshold value will be fixed and depending on
that value, the pixels values are classified. Thus the image
can be segmented.
The segmented image obtained from the thresholding
approach [5] uses less storage space. The processing speed
of this method is high and manipulation of this method is
high, compared to other segmentation techniques. Hence
this technique is used as a segmentation technique in most
of the image processing works.