The purpose of this book is to provide an overview of medical image processing and related health care services in variant diseases like Alzheimer’s disease, glaucoma, mild cognitive impairment, dementia, and other neurodegenerative syndromes. It is anticipated that it will be useful for research scientists to capture recent developments and to spark innovative ideas within the medical image processing domain. With an emphasis on both the basic and advanced applications of medical imaging, this book covers several unique concepts like optimized image fusion, ophthalmic hashing and linear bootstrap aggregating that have been graphically represented to improve readability, such as the optimized image fusion introduced in chapter 1, linear bootstrap aggregating discussed in Chapter 2 and ophthalmic hashing that is proposed in Chapter 4. The remainder of the book emphases on the area application-orientated image fusions, which cover the numerous expanses of medical image processing and its applications.