Segmentation is the process of separating an image into multiple logical regions. The regions can be defined as pixels sharing similar characteristics such as intensity, texture, etc. There are many methods of segmentation. They can be classified as follows:
•Histogram-based segmentation
•Region-based segmentation
•Edge segmentation
•Differential equation-based methods
•Contour methods
•Graph partitioning methods
•Model based segmentation
•Clustering methods, etc.
In this chapter, we discuss histogram and region-based and contour segmentation methods. Edge-based segmentation was discussed in Chapter 4, “Spatial Filters.” The other methods are beyond the scope of this book. Interested readers can refer ...
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