2021 Asia-Pacific Conference on Image Processing, Electronics and Computers (IPEC 2021) will take place in Dalian, China, on April 14-16, 2021. IPEC 2021 seeks to provide a high-level forum for experts, researchers, professionals, innovators and practitioners in the field of image processing, electronics and computers from industry and academia to present and discuss the wide spectrum of original and novel researches and contributions together. Image processing, electronics and computers are hotspot topics in modern academic and scientific field. It is an especially new research direction, so novel and state-of-the-art researches and inventions related to image processing, electronics and computers emerge continuously. Therefore, IPEC 2021 will serve as a catalyst for explorations and discussion on new concepts and novel achievements of image processing, electronics and computers from theoretical research and practical applications at the same time.