Img2Img takes an existing image as input and transforms it using your prompt — one of SD's most powerful and versatile capabilities.
What Img2Img Can Do
- Restyle any photo (make it painterly, anime, photorealistic)
- Change elements of an existing image while keeping composition
- Upscale and enhance details (with hires.fix or tiled upscaling)
- Blend a rough sketch with photorealism
- Fix bad outputs by using them as img2img starting points
Denoising Strength
The key parameter. 0.0 = identical to input. 1.0 = completely ignores input. Sweet spot for transformation: 0.5–0.7. For minor changes: 0.2–0.4.
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