Mathematics and Technology are directly related to each other as mathematics offer analysis, conception, and application tools in various fields. Medical imagery, special remote sensing, astronomy, robotics, pattern recognition are examples of active areas of research related to digital image processing. What is a digital image? What are the characteristics, the types, and the formats of a digital image? What are the mathematical tools that enable us to extract the shapes and the forms? What are the software programs that we may use to practice this discipline?