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img2img pipeline for stable diffusion. (#752)

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* img2img pipeline for stable diffusion.

* Rename the arguments + fix.

* Fix for zero strength.

* Another fix.

* Another fix.

* Revert.

* Include the backtrace.

* Noise scaling.

* Fix the height/width.
This commit is contained in:
Laurent Mazare
2023-09-06 08:06:49 +02:00
committed by GitHub
parent 16bf44f6e9
commit 7299a68353
4 changed files with 91 additions and 17 deletions
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8
candle-examples/src/lib.rs
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@ -35,14 +35,14 @@ pub fn load_image_and_resize<P: AsRef<std::path::Path>>(
}
/// Saves an image to disk using the image crate, this expects an input with shape
/// (c, width, height).
/// (c, height, width).
pub fn save_image<P: AsRef<std::path::Path>>(img: &Tensor, p: P) -> Result<()> {
let p = p.as_ref();
let (channel, width, height) = img.dims3()?;
let (channel, height, width) = img.dims3()?;
if channel != 3 {
candle::bail!("save_image expects an input of shape (3, width, height)")
candle::bail!("save_image expects an input of shape (3, height, width)")
}
let img = img.transpose(0, 1)?.t()?.flatten_all()?;
let img = img.permute((1, 2, 0))?.flatten_all()?;
let pixels = img.to_vec1::<u8>()?;
let image: image::ImageBuffer<image::Rgb<u8>, Vec<u8>> =
match image::ImageBuffer::from_raw(width as u32, height as u32, pixels) {