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Denoise Strength (--power)

Denoise Strength, indicated by the --power parameter, is an essential tool for controlling the quality of upscaled images in our system.


  • Default Value: 0.3
  • Description: The --power parameter adjusts the strength of the upscaling algorithm. A higher value means the upscaling is more aggressive, resulting in a more pronounced denoising effect. Conversely, a lower value yields a more subtle, nuanced effect. Using this lever, you can influence the clarity and fidelity of generated images, especially during the upscaling process.


All generated images undergo upscaling. This process can sometimes introduce noise or other undesired effects. By providing the --power option, we grant users the ability to adjust the denoise strength and, consequently, the image's final appearance.


The --power parameter is compatible with all commands, including /serve, /zoomout, and /upscale. It's crucial to mention that the /upscale command is particularly sensitive to this parameter. If hallucinations appear in the image, reducing the --power value can often rectify the issue.

Practical Demonstration

To understand the parameter's impact, let's evaluate it in action:

  1. Default Value Example (--power 0.3):
/serve-free prompt: old bartender in the bar with a long beard --seed 123

Image 1

High Value Example (--power 0.7):

This value is atypical and might produce hallucinations.

/serve-free prompt: old bartender in the bar with a long beard --seed 123 --power 0.7
Image 2

Observation: As expected, the generated image is filled with hallucinations, scattering the main subject everywhere.

Low Value Example (--power 0.1):

/serve-free prompt: old bartender in the bar with a long beard --seed 123 --power 0.1

The hallucinations are noticeably reduced. However, the image might lack some of the finer details present in the original.

Image 3