12 stable releases
3.2.1 | Sep 19, 2024 |
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3.1.5 | Jul 7, 2024 |
3.1.4 | Oct 21, 2023 |
3.0.3 | Feb 9, 2023 |
2.12.0 |
|
#441 in Images
1,607 downloads per month
Used in 14 crates
(6 directly)
420KB
1K
SLoC
Load image as sRGB
Glue code for a few libraries that correctly loads a JPEG, PNG, or (optionally) WebP or AVIF image into memory, taking into accout color profile metadata in PNG chunks, EXIF data and app markers. Converts CMYK to RGB if needed.
cargo add load_image
fn main() -> Result<(), Box<dyn std::error::Error>> {
let path = std::env::args().nth(1).ok_or("Please provide image file path")?;
let img = load_image::load_image(path)?;
}
The returned Image
is:
struct Image {
pub width: usize,
pub height: usize,
pub bitmap: enum ImageData {
RGB8(Vec<RGB8>),
RGBA8(Vec<RGBA8>),
RGB16(Vec<RGB16>),
RGBA16(Vec<RGBA16>),
GRAY8(Vec<GRAY8>),
GRAY16(Vec<GRAY16>),
GRAYA8(Vec<GRAYA8>),
GRAYA16(Vec<GRAYA16>),
}
}
The bitmap is packed, so x + y * width
gives the pixel at x,y
(use imgref for convenient manipulation).
The load_image
function doesn't panic, but if you enable the mozjpeg
feature, it will depend on unwinding internally, and won't be compatible with crates compiled with panic = "abort"
option.
Dependencies
~2.5–7.5MB
~152K SLoC