imageformat

Quickly probe the format of various image formats without reading the entire file.

The goal of this crate is to be able to detect format of a supported image without loading unnecessary data, and without pulling in more dependencies. Most reads only require 16 bytes or less.

Usage

use image_format_detector::prelude::*;

fn main() {
    // Example: Read the first few bytes of a file
    let file = std::fs::File::open("/Somepath/example.webp")?;
    let mut cursor = std::io::Cursor::new(file);
    let format = detect_image_format(&mut cursor);

    // Or: pass in the file path
    let format = detect_image_format_path("/Somepath/example.png").unwrap();

    match format {
        ImageFormat::Jpeg => println!("It's a JPEG image."),
        ImageFormat::JpegXl => println!("It's a JPEG XL image."),
        ImageFormat::Png => println!("It's a PNG image."),
        ImageFormat::Webp => println!("It's a WEBP image."),
        ...
    }
}

Supported Image Formats

• Aseprite
• Avif
• BMP
• DDS
• EXR
• Farbfeld
• GIF
• HDR
• HEIC / HEIF
• ICO*
• ILBM (IFF)
• JPEG
• JPEG XL
• KTX2
• PNG
• PNM (PBM, PGM, PPM)
• PSD / PSB
• QOI
• TGA
• TIFF
• VTF
• WEBP

If you have a format you think should be added, feel free to create an issue.