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3.6 Docs updates (#5412)

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* Update UNIFIED_CANVAS.md

* Update index.md

* Update structure

* Docs updates
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@ -229,29 +229,28 @@ clarity on the intent and common use cases we expect for utilizing them.
currently being rendered by your browser into a merged copy of the image. This
lowers the resource requirements and should improve performance.
### Seam Correction
### Compositing / Seam Correction
When doing Inpainting or Outpainting, Invoke needs to merge the pixels generated
by Stable Diffusion into your existing image. To do this, the area around the
`seam` at the boundary between your image and the new generation is
by Stable Diffusion into your existing image. This is achieved through compositing - the area around the the boundary between your image and the new generation is
automatically blended to produce a seamless output. In a fully automatic
process, a mask is generated to cover the seam, and then the area of the seam is
process, a mask is generated to cover the boundary, and then the area of the boundary is
Inpainted.
Although the default options should work well most of the time, sometimes it can
help to alter the parameters that control the seam Inpainting. A wider seam and
a blur setting of about 1/3 of the seam have been noted as producing
consistently strong results (e.g. 96 wide and 16 blur - adds up to 32 blur with
both sides). Seam strength of 0.7 is best for reducing hard seams.
help to alter the parameters that control the Compositing. A larger blur and
a blur setting have been noted as producing
consistently strong results . Strength of 0.7 is best for reducing hard seams.
- **Mode** - What part of the image will have the the Compositing applied to it.
- **Mask edge** will apply Compositing to the edge of the masked area
- **Mask** will apply Compositing to the entire masked area
- **Unmasked** will apply Compositing to the entire image
- **Steps** - Number of generation steps that will occur during the Coherence Pass, similar to Denoising Steps. Higher step counts will generally have better results.
- **Strength** - How much noise is added for the Coherence Pass, similar to Denoising Strength. A strength of 0 will result in an unchanged image, while a strength of 1 will result in an image with a completely new area as defined by the Mode setting.
- **Blur** - Adjusts the pixel radius of the the mask. A larger blur radius will cause the mask to extend past the visibly masked area, while too small of a blur radius will result in a mask that is smaller than the visibly masked area.
- **Blur Method** - The method of blur applied to the masked area.
- **Seam Size** - The size of the seam masked area. Set higher to make a larger
mask around the seam.
- **Seam Blur** - The size of the blur that is applied on _each_ side of the
masked area.
- **Seam Strength** - The Image To Image Strength parameter used for the
Inpainting generation that is applied to the seam area.
- **Seam Steps** - The number of generation steps that should be used to Inpaint
the seam.
### Infill & Scaling