Image Segmentation
Segmentation is the process that divides an image into its constituent parts or objects.
Segmentation is an essential step before description and recognition/ classification.
Two major approaches to image segmentation are based on
detection of.
- Discontinuity: Abrupt changes in gray level (corresponding to edges) are detected.
- Similarity: Homogeneous parts are detected, based on gray level thresholding, region growing, and region splitting/ merging.