User Constrained Thumbnail Generation

User-constrained thumbnail generation is a task in the field of computer vision that aims to generate high-quality thumbnails from input images according to user-specified constraints. This task ensures that the generated thumbnails not only retain key visual information but also meet the user's specific requirements, such as areas of interest, aspect ratios, etc. It has significant value in applications like image retrieval, e-commerce, and content recommendation, enhancing user experience and interaction.