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79 lines
2.6 KiB
Markdown
79 lines
2.6 KiB
Markdown
---
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title: Outpainting
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---
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# :octicons-paintbrush-16: Outpainting
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## Continous outpainting
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This extension uses the inpainting code to extend an existing image to
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any direction of "top", "right", "bottom" or "left". To use it you
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need to provide an initial image with -I and an extension direction
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with -D (direction). When extending using outpainting a higher img2img
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strength value of 0.83 is the default.
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The code is not foolproof. Sometimes it will do a good job extending
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the image, and other times it will generate ghost images and other
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artifacts. In addition, the code works best on images that were
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generated by dream.py, because it will be able to recover the original
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prompt that generated the file and "understand" what you are trying to
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achieve.
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### Basic Usage
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To illustrate, consider this image generated with the prompt "fantasy
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portrait of eleven princess." It's nice, but rather annoying that the
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top of the head has been cropped off.
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We can fix that using the `!fix` command!
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~~~~
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dream> !fix my_images/elven_princess.png -D top 50
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~~~~
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This is telling dream.py to open up a rectangle 50 pixels high at the
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top of the image and outpaint into it. The result is:
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Viola! You can similarly specify `bottom`, `left` or `right` to
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outpaint into these margins.
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There are some limitations to be aware of:
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1. You cannot change the size of the image rectangle. In the example,
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notice that the whole image is shifted downwards by 50 pixels, rather
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than the top being extended upwards.
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2. Attempting to outpaint larger areas will frequently give rise to ugly
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ghosting effects.
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3. For best results, try increasing the step number.
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4. If you don't specify a pixel value in -D, it will default to half
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of the whole image, which is likely not what you want.
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You can do more with `!fix` including upscaling and facial
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reconstruction of previously-generated images. See
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[./UPSCALE.md#fixing-previously-generated-images] for the details.
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### Advanced Usage
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For more control over the outpaintihg process, you can provide the
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`-D` option at image generation time. This allows you to apply all the
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controls, including the ability to resize the image and apply face-fixing
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and upscaling. For example:
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~~~~
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dream> man with cat on shoulder -I./images/man.png -D bottom 100 -W960 -H960 -fit
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~~~~
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Or even shorter, since the prompt is read from the metadata of the old image:
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dream> -I./images/man.png -D bottom 100 -W960 -H960 -fit -U2 -G1
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~~~~
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