Update pastel; remove nalgebra dependency

This commit is contained in:
Agatha Lovelace 2023-11-25 20:36:26 +01:00
parent a1a21aebbc
commit 61c77e71b5
Signed by: sorceress
GPG Key ID: 01D0B3AB10CED4F8
3 changed files with 71 additions and 219 deletions

258
Cargo.lock generated
View File

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]
[[package]]
@ -1181,12 +1077,6 @@ dependencies = [
"weezl",
]
[[package]]
name = "typenum"
version = "1.17.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "42ff0bf0c66b8238c6f3b578df37d0b7848e55df8577b3f74f92a69acceeb825"
[[package]]
name = "unicode-ident"
version = "1.0.12"
@ -1223,16 +1113,6 @@ version = "0.1.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9193164d4de03a926d909d3bc7c30543cecb35400c02114792c2cae20d5e2dbb"
[[package]]
name = "wide"
version = "0.7.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ebecebefc38ff1860b4bc47550bbfa63af5746061cf0d29fcd7fa63171602598"
dependencies = [
"bytemuck",
"safe_arch",
]
[[package]]
name = "winapi"
version = "0.3.9"

View File

@ -13,6 +13,5 @@ clap = { version = "4.4.6", features = ["derive"] }
color-thief = "0.2.2"
image = "0.24.7"
miette = { version = "5.10.0", features = ["fancy"] }
nalgebra = "0.32.3"
okolors = "0.4.0"
pastel = "0.9.0"
pastel = { git = "https://github.com/sharkdp/pastel.git", rev = "f205dec1952808ed3c33e9bc5ad98d0dccb19f74" }

View File

@ -3,7 +3,6 @@ use clap::ValueEnum;
use color_thief::ColorFormat;
use image::DynamicImage;
use miette::{IntoDiagnostic, Result};
use nalgebra::{matrix, ArrayStorage, Const, Matrix};
use okolors::OklabCounts;
use pastel::{Color, Fraction};
@ -56,8 +55,7 @@ fn generate_okolors(image: &DynamicImage, args: &Args) -> Result<Vec<Color>> {
let colors: Vec<_> = okolors::run(&oklab, 5, args.colors, 0.05, 128, 0)
.centroids
.into_iter()
.map(|c| oklab_to_xyz(c.l, c.a, c.b))
.map(|c| Color::from_xyz(c.0 as f64, c.1 as f64, c.2 as f64, 1.0))
.map(|c| Color::from_oklab(c.l as f64, c.a as f64, c.b as f64, 1.0))
.collect();
Ok(colors)
@ -96,28 +94,3 @@ fn transform_colors(colors: &mut Vec<Color>, args: &Args) -> Vec<Color> {
colors
}
/// Convert Oklab coordinates to XYZ coordinates according to
/// https://bottosson.github.io/posts/oklab
fn oklab_to_xyz(l: f32, a: f32, b: f32) -> (f32, f32, f32) {
// Pre-computed inversions of the M₁ and M₂ matrices
const M1_INV: Matrix<f32, Const<3>, Const<3>, ArrayStorage<f32, 3, 3>> = matrix![
1.227014, -0.5578, 0.28125617;
-0.04058018, 1.1122569, -0.07167668;
-0.07638129, -0.421482, 1.5861632;
];
const M2_INV: Matrix<f32, Const<3>, Const<3>, ArrayStorage<f32, 3, 3>> = matrix![
1.0000001, 0.3963378, 0.21580376;
1.0, -0.105561346, -0.06385418;
1.0000001, -0.08948418, -1.2914855;
];
let l_m_s_ = M2_INV * matrix![l; a; b];
let lms = l_m_s_.map(|v| v.powi(3));
let xyz = M1_INV * lms;
(xyz.x, xyz.y, xyz.z)
}