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157 | use crate::utils::warning;
use color_thief::ColorFormat;
use kmeans_colors::get_kmeans;
use palette::{FromColor, IntoColor, Lab, Srgb};
use palette_extract::{MaxColors, Quality};
use std::collections::HashSet;
use std::fs::read;
use std::process::exit;
fn adjust_rgb(r: u8, g: u8, b: u8, brightness: i16, saturation: i16) -> (u8, u8, u8) {
let saturation = saturation + 50;
let avg = ((r as u16 + g as u16 + b as u16) / 3) as f32;
let r = ((r as f32 - avg) * (saturation as f32 / 100.0) + avg + brightness as f32)
.clamp(0.0, 255.0);
let g = ((g as f32 - avg) * (saturation as f32 / 100.0) + avg + brightness as f32)
.clamp(0.0, 255.0);
let b = ((b as f32 - avg) * (saturation as f32 / 100.0) + avg + brightness as f32)
.clamp(0.0, 255.0);
(r as u8, g as u8, b as u8)
}
fn remove_duplicates(colors: Vec<(u8, u8, u8)>) -> Vec<(u8, u8, u8)> {
let set: HashSet<_> = colors.into_iter().collect();
set.into_iter().collect()
}
fn to_gray(r: u8, g: u8, b: u8, v: f32) -> (u8, u8, u8) {
(
(r as f32 + (255.0 - r as f32) * v) as u8,
(g as f32 + (255.0 - g as f32) * v) as u8,
(b as f32 + (255.0 - b as f32) * v) as u8,
)
}
fn generate_variation(color: (u8, u8, u8), offset: i16) -> (u8, u8, u8) {
adjust_rgb(color.0, color.1, color.2, offset, 50)
}
pub fn get_colors(
image_path: &str,
send: bool,
brightness: Option<i16>,
saturation: Option<i16>,
) -> (Vec<(u8, u8, u8)>, u8) {
let core_image = match image::open(image_path) {
Ok(img) => img,
Err(_) => {
let data = read(image_path).unwrap();
match image::guess_format(&data) {
Ok(fmt) => image::load_from_memory_with_format(&data, fmt).unwrap(),
Err(_) => {
warning("Image", "Unsupported or corrupted image format", send);
exit(1);
}
}
}
};
// resize the image
let image = core_image.resize(
400,
(core_image.height() as f32 * (400 as f32 / core_image.width() as f32)) as u32,
image::imageops::FilterType::Lanczos3,
);
let native_rgba = image.to_rgba8();
let alpha = &native_rgba.get_pixel(0, 0)[3];
let mut collect_rgb: Vec<(u8, u8, u8)> = Vec::new();
let pixels_kmeans: Vec<Lab> = native_rgba
.pixels()
.filter(|p| p.0[3] > 0) // Filter out transparent pixels
.map(|p| {
let srgb = Srgb::new(
p.0[0] as f32 / 255.0,
p.0[1] as f32 / 255.0,
p.0[2] as f32 / 255.0,
)
.into_linear();
srgb.into_color()
})
.collect();
let palette_kmeans: Vec<Srgb> = get_kmeans(10, 20, 1.0, false, &pixels_kmeans, 0)
.centroids
.iter()
.map(|&lab| Srgb::from_color(lab))
.collect();
for color in &palette_kmeans {
let (r, g, b) = (
(color.red * 255.0).round() as u8,
(color.green * 255.0).round() as u8,
(color.blue * 255.0).round() as u8,
);
collect_rgb.push((r, g, b))
}
let palette_extract = palette_extract::get_palette_with_options(
&native_rgba,
palette_extract::PixelEncoding::Rgba,
Quality::new(5),
MaxColors::new(10),
palette_extract::PixelFilter::White,
);
let palette_thief = color_thief::get_palette(&native_rgba, ColorFormat::Rgba, 5, 10);
for color in &palette_extract {
collect_rgb.push((color.r, color.g, color.b));
}
if let Ok(ref colors) = palette_thief {
for color in colors {
collect_rgb.push((color.r, color.g, color.b));
}
}
collect_rgb = remove_duplicates(collect_rgb);
let mut i = 0;
while collect_rgb.len() <= 21 {
let base = collect_rgb[i % collect_rgb.len()];
let variation = generate_variation(base, 10 * (i as i16 + 1));
collect_rgb.push(variation);
i += 1;
}
collect_rgb.sort_by(|a, b| {
let lum_a = 0.299 * a.0 as f32 + 0.587 * a.1 as f32 + 0.114 * a.2 as f32;
let lum_b = 0.299 * b.0 as f32 + 0.587 * b.1 as f32 + 0.114 * b.2 as f32;
lum_a.partial_cmp(&lum_b).unwrap()
});
let colors = [0, 13, 15, 16, 17, 21, 20, 19, 9, 13, 15, 16, 17, 21, 20, 19];
let mut done: Vec<(u8, u8, u8)> = Vec::new();
for color in colors {
let (mut r, mut g, mut b) = collect_rgb[color];
(r, g, b) = adjust_rgb(
r,
g,
b,
brightness.unwrap_or(0),
saturation.unwrap_or(0) + 90,
);
done.push((r, g, b));
}
let (mut r, mut g, mut b) = collect_rgb[20];
(r, g, b) = adjust_rgb(r, g, b, 40, 80);
(r, g, b) = to_gray(r, g, b, 0.55);
done[7] = (r, g, b);
done[15] = (r, g, b);
(done, *alpha)
}
|
