- Sampling method: DPM++ 2M Karras or Euler a.
- Sampling steps: 30 or higher
- Width & Height: Ensure that you maintain the same aspect ratio as your canvas.
- CFG Scale: 4 to 8
Next up, make sure you enable Hires. Fix, this will ensure a smooth transition between your canvas and the generated image.
- Upscaler: I select 4x-UltraSharp, this is not a default option but it’s recommended to use with the RealisticVision checkpoint. Alternatively you can use ESRGAN_4x.
- Hires steps: 20 or higher
- Denoising Strength: 0,4 – 0,6
- Upscale by: 1.1 – 2

ControlNet
- Pixel Perfect: Yes
- Preprocessor: None or Invert, you can use both and see what you like best.
- Model: control_v1p_sd15_qrcode_monster
- Control Weight: 0.7 – 2, You can play around with this value. The lower the value the harder it will become to see your image, making you really need to squint your eyes!
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