Discover how to create stunning AI-generated hidden art using Stable Diffusion, from fancy QR codes to deep object placement. Learn to utilize predefined patterns and placement objects to craft unique AI art pieces. Explore the process of installing necessary extensions and ControlNet models in Stable Diffusion, and master techniques for embedding QR references in multilayered designs. Gain insights into choosing the best preprocessor for this task and understand why Stable Diffusion is uniquely suited for this creative endeavor. Follow along with step-by-step instructions on using QR codes with ControlNet and overcoming potential challenges in the process.