Abstract: Image segmentation is a classic & vital issue in image processing. It has been the hotspot for the researchers in the area of image processing. Segmentation is nothing but the process of dividing the image into multiple segments. The main aim is to make image more simple & meaningful. It also helps to find region of interest in a particular image. In this paper, we have covered a review on various segmentation techniques such as thresholding, edge based segmentation, region based segmentation, and clustering approach.

Keywords: Image segmentation, Image processing, thresholding, clustering.