The MultiDiffusion Upscaler is an open-source extension for the Automatic1111 Stable Diffusion WebUI. It enables the generation and upscaling of ultra-high-resolution images (2K–16K+) on systems with limited VRAM (as low as 4–6GB) by employing advanced tiling techniques. By dividing images into manageable tiles and processing them individually, the extension allows for seamless and efficient image synthesis and enhancement without compromising quality.
Key Features
Tiled Diffusion: Facilitates text-to-image generation and image-to-image upscaling for ultra-large images.
Tiled VAE: Optimizes Variational Autoencoder processing to handle large images efficiently.
Tiled Noise Inversion: Introduces a novel method for improved upscaling quality.
Regional Prompt Control: Allows for different prompts in specified regions of an image.
ControlNet Support: Integrates with ControlNet for enhanced control over image generation.
StableSR Support: Compatible with StableSR for super-resolution tasks.