A blazingly fast interpolated LUT utility for arbitrary and popular color palettes. Theme any image to your desktop colorscheme!

Catppuccin Mocha

Gruvbox Dark

Nord

Original Image

Catppuccin Mocha

Gruvbox Dark

Nord

git clone https://github.com/ozwaldorf/lutgen-rs
cd lutgen-rs
cargo install --path crates/cli

cargo install lutgen-cli

Detailed documentation, examples, and more are available on The Lutgen Wiki

(For this example, Ubuntu packages are listed)

• libxcb-render0-dev
• libxcb-shape0-dev
• libxcb-xfixes0-dev
• libxkbcommon-dev
• libssl-dev
• wayland

git clone https://github.com/ozwaldorf/lutgen-rs
cd lutgen-rs
cargo install --path crates/studio

cargo install lutgen-studio

See the latest rust documentation on docs.rs/lutgen

A nix flake is available providing both lutgen and lutgen-studio packages. The flake can be easily run via:

nix run github:ozwaldorf/lutgen-rs
nix run github:ozwaldorf/lutgen-rs#lutgen-studio

Cache is provided via https://garnix.io

A development environment is also provided in the flake:

git clone https://github.com/ozwaldorf/lutgen-rs
cd lutgen-rs
nix develop

# inside dev shell
cargo run -r --bin lutgen
cargo run -r --bin lutgen-studio

• Interpolation for more accuracy when correcting with low level luts (<16)
• Hardware acceleration for applying luts to images

• Hald Cluts: https://www.quelsolaar.com/technology/clut.html
• Editing with Hald Cluts: https://im.snibgo.com/edithald.htm
• Sparse Hald Cluts: https://im.snibgo.com/sphaldcl.htm
• RBF Interpolation: https://en.wikipedia.org/wiki/Radial_basis_function_interpolation
• Shepard's method: https://en.wikipedia.org/wiki/Inverse_distance_weighting
• Oklab Colorspace: https://bottosson.github.io/posts/oklab/

• Gingeh for the initial inspiration and imagemagick approach
• The Catppuccin Org for continual feedback and support along the way
• Stonks3141 for maintaining the Alpine Linux package
• All the nixpkgs maintainers