phundrak
28dac1b7dc
Add `convert.rs`: a SIMD nearest-color search and a rayon-parallel `nordify_pixels` function. Add `error.rs` with the `NordifyError` type. Rewrite `lib.rs` to expose `NordifyOptions`, `nordify_image`, and `nordify_file` as the public API. Rewrite `main.rs` to parse CLI arguments with `argh` and call into `lib.rs`. Add `argh` and `thiserror` as dependencies.
46 lines
1.2 KiB
Rust
46 lines
1.2 KiB
Rust
use std::path::PathBuf;
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/// Convert an image to the Nord color palette without dithering artifacts.
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#[derive(argh::FromArgs)]
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struct Args {
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/// input image path
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#[argh(positional)]
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input: PathBuf,
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/// output image path
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#[argh(option, short = 'o')]
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output: PathBuf,
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/// use only the original 16 Nord colors (disable palette expansion)
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#[argh(switch)]
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no_expand: bool,
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/// number of interpolated colors between close palette entries (default: 3)
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#[argh(option, default = "3")]
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expansion_factor: usize,
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/// use plain RGB distance instead of perceptual LAB distance
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#[argh(switch)]
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rgb_distance: bool,
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}
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fn main() -> std::process::ExitCode {
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let args: Args = argh::from_env();
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let options = nordify_rs::NordifyOptions {
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expand: !args.no_expand,
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expansion_factor: args.expansion_factor,
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use_lab: !args.rgb_distance,
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};
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match nordify_rs::nordify_file(&args.input, &args.output, &options) {
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Ok(()) => {
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println!("Saved to {}", args.output.display());
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std::process::ExitCode::SUCCESS
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}
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Err(err) => {
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eprintln!("Error: {err}");
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std::process::ExitCode::FAILURE
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}
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}
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}
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