Photo

Utility image classes for Rust.

Features

• Grayscale, Grascale with alpha, RGB and RGBA images, as well as custom color types.
• Colour maps
• Image IO
• Image transformations utilities.
• Tile manipulation.
• Generic precision types for image components: u8, f32, f64 etc.
• Print images to the console.

Usage

Reading and writing images

Loading a RGB image with f32 components:

use photo::ImageRGB;

let mut image = ImageRGB::<f32>::load("input/my_colour_image.png").expect("Failed to load image");

Save it:

image.save("output/my_colour_image.png").expect("Failed to save image");

Image transformations

image.flip_horizontal();
image.rotate_clockwise();

Tiling

let tile_size = (14, 14); // 14x14 pixel tiles
let tiles: Arrray2<ImageRGB> = image.tiles(tile_size);

Colour maps

let colours = vec!["#FF0000", "#00FF00", "#0000FF00"];
let colour_map: ColourMap<f32, LinSrgba> = ColourMap::new(&colours);

let sample = colour_map.sample(0.75);

Colourize grayscale images

use photo::ImageG;

let grayscale_image = ImageG::<u8>::load("input/my_grayscale_image.png").expect("Failed to load image");
let coloured_image = grayscale_image.colourize(&colour_map);

Print images to the console

println!("{}", image);