Digital image processing is a research hotspot in modern information processing.In response to the problem of low student participation and insignificant teaching effectiveness in the"Digital Image Processing"course,the article has designed the content of course cases,integrating the OBE concept and multiple types of cases into teaching,and implementing them in the field of electronic information engineering,achieving the teaching objectives of consolidating basic theoretical knowledge and improving students'self-learning ability.Practice has shown that the"Digital Image Processing"case under the OBE concept effectively enhances students'learning enthusiasm,significantly improves teaching effectiveness,and achieves satisfactory results.