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image v0.22 Release Notes

    • The required Rust version is now 1.34.2.
    • Note the website and blog: image-rs.org and blog.image-rs.org
    • 🚚 PixelMut now only on ImageBuffer and removed from GenericImage interface. Prefer iterating manually in the generic case.
    • Replaced an unsafe interface in the hdr decoder with a safe variant.
    • 👌 Support loading 2-bit BMP images
    • ➕ Add method to save an ImageBuffer/DynamicImage with specified format
    • ⚡️ Update tiff to 0.3 with a writer
    • ⚡️ Update png to 0.15, fixes reading of interlaced sub-byte pixels
    • Always use custom struct for ImageDecoder::Reader
    • Added apply_without_alpha and map_without_alpha to Pixel trait
    • Pixel information now with associated constants instead of static methods
    • 🔄 Changed color structs to tuple types with single component. Improves ergonomics of destructuring assignment and construction.
    • ➕ Add lifetime parameter on ImageDecoder trait.
    • ✂ Remove unnecessary 'static bounds on affine operations
    • ➕ Add function to retrieve image dimensions without loading full image
    • 👍 Allow different image types in overlay and replace
    • Iterators over rows of ImageBuffer, mutable variants