Image processing plays a vital role in almost all engineering and medical applications to extract and evaluate the region of interest from gray/color images. Image processing methods include pre-processing, feature extraction, and classification. Pre-processing is used to enhance the quality of the image; this includes adaptive thresholding, contrast enhancement, histogram equalization, and edge detection. Feature extraction techniques are used to extract prominent features from images that can later be used for classification.
The procedures to build an image pre-processing scheme are presented in the chapter.