How Delivery Hero Implemented the Safety System for AI-Generated Images

Delivery Hero, a multinational online food delivery company, has implemented an AI safety system to generate high-quality images of products. The system consists of two stages: food image generation and building a safety system. For the first stage, they use DALL-E from OpenAI and implement an image inpainting method with Grounding DINO and DALL-E. In the second stage, four components are used to generate a final score for each image: image tagging, image centering, text detection, and image sharpness. The scores obtained from these components are combined with a weighted function to give each image one final score value. By applying a threshold, an image with a final score below the threshold will be filtered out and not recommended to vendors.