Digital Image Processing (DIP) is the use of computer programs to carry out image processing tasks on digital images. Currently, DIP has many techniques, methods, algorithms, and applications, making it worth having a practical look at. This book examines carefully the most popular image processing algorithms that are standards in modern image processing applications such as Photoshop. The book is flooded with source-code all written in the CSharp language. Their purpose is to match theory with reality. Furthermore, this book presents a complete overview on several hot topics including parallel processing, steganography, optical character recognition, and digital photography.