Summary

This chapter described the method to access pixel intensities at a particular location in an image. It is very useful when we are performing a pointwise operation on an image. A histogram is a very important global feature used to describe an image. This chapter described the method to compute a histogram and the process of histogram equalization, which improves the visual quality of an image. Various geometric transformations such as image resizing, rotation, and translation were explained in detail. Image filtering is a useful neighborhood processing technique used to eliminate noise and extract edge features of an image and was described in detail. A low pass filter is used to remove noise but it will also blur out the edges of an image. A high-pass filter removes the background, which is a low-frequency region while enhancing edges, which are high-frequency regions...