NoisePlusBlend
This node will generate a Gaussian blur noise based on the dimensions of the input image and will blend the noise into the entire image or only the mask region. Issue: Generated faces/landscapes are realistic, but during upscale, the AI model smoothens the skin or texture, making it look plastic or adding smooth fine lines. Solution: For upscaling, auto segment or manually mask the face or specified regions and add noise. Then, pass the blended image output to the K-Sampler and denoise at 0.20 - 0.50. You can see the noise has been applied only to the face as per the mask. This will maintain the smooth bokeh and preserve the facial details during upscale. Denoise the image using Flux or SDXL sampler. Recommended sampler denoise: 0.10 - 0.50 Settings: noisescale: 0.30 - 0.50. blendopacity: 10-25. If you find too many artifacts on the skin or other textures, reduce both values. Increase the values if upscaling output results in plastic, velvet-like smooth lines. Best Setting for AI-generated Faces: noisescale: 0.40-0.50. blendopacity: 15-25. Best Setting for AI-generated texture (landscapes): noisescale: 0.30. blendopacity: 12-15. Results: Example 1 Without Noise Blend: With Noise Blend: Example 2 Without Noise Blend: With Noise Blend: Example 3 Without Noise Blend: With Noise Blend: Example 4 Without Noise Blend: With Noise Blend:
ControlAltAI Nodes/Image · 2 inputs · 2 parameters · 2 outputs
