This article proposes an innovative method based on mixed information fusion to address the issue of poor detail enhancement in product packaging design image processing. This method first constructs a multi view imaging model of dynamic illustration images, which achieves hierarchical construction of dynamic illustrations and fusion of multi view image details by converting depth images into point cloud feature points. Subsequently, this article uses 3D registration technology to accurately align the detailed features of dynamic illustration images, and combines mixed information fusion technology to comprehensively consider the saturation, contrast, and exposure information of the images, effectively enhancing the detail representation of dark areas in the images. The experimental results show that this method significantly improves the quality of product packaging design images, with clearer and more prominent details and textures, demonstrating broad application prospects in the field of product packaging design. The innovation of this article lies in the introduction of a multi view imaging model and mixed information fusion technology, providing a novel and effective solution for enhancing the details of product packaging design images.