With the progress of society and the development of technology, digital technology has been widely used in current life practices. From the perspective of practical application effects, digital technology has not only greatly improved people's work efficiency, but also significantly improved the quality of work. From the perspective of the current application of digital technology, digital image processing is very common. This work benefits from the digital technology and computer foundation, so the quality of image processing is higher, and the use effect is higher. The emergence and development of the main content of image enhancement and restoration, image segmentation, and image analysis, and based on the latest progress in this field, this paper briefly describes the latest hotspots in five main research areas of digital image processing technology, and finally summarizes the main challenges and future development directions in the field of digital image processing technology.