"Digital Image: Theories, Algorithms, and Applications" introduces the fundamentals of digital image processing through student centric approach. Comprehensive digital image theory narrated by prototype computing or graphing eliminates mathematical intricacy of two dimensional computing or double summation involvement - a salient feature of the text. Numerical subjectiveness assists the reader to be a good professional in the field of digital image processing which is systematically taken care of. Neoteric presentation, illustrative drills, concise methodology, and overwhelming material omission wherever possible are designed to render a pertinent text. Most relevant undergraduate class discussed digital image processing topics which are taught in a one semester course are highlighted since they are the main audience.