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Rust Image Release Notes

Rust image aims to be a pure-Rust implementation of various popular image formats. Accompanying reading/write support, rust image provides basic imaging processing function. See README.md for further details.

Known issues

  • Interlaced (progressive) or animated images are not well supported.
  • Images with n bit/channel (n ≠ 8) are not well supported.

Changes

Version 0.22.5

  • Added GenericImage::copy_within, specialized for ImageBuffer
  • Fixed decoding of interlaced gif files
  • Prepare for future compatibility of array IntoIterator in example code

Version 0.22.4

  • Added in-place variants for flip and rotate operations.
  • The bmp encoder now checks if dimensions are valid for the format. It would previously write a subset or panic.
  • Removed deprecated implementations of Error::description
  • Added DynamicImage::into_* which convert without an additional allocation.
  • The PNG encoder errors on unsupported color types where it had previously silently swapped color channels.
  • Enabled saving images as gif with save_buffer.

Version 0.22.3

  • Added a new module io containing a configurable Reader. It can replace the bunch of free functions: image::{load_*, open, image_dimensions} while enabling new combinations such as open but with format deduced from content instead of file path.
  • Fixed const_err lint in the macro expanded implementations of Pixel. This can only affect your crate if image is used as a path dependency.

Version 0.22.2

  • Undeprecate unsafe trait accessors. Further evaluation showed that their deprecation should be delayed until trait impl specialization is available.
  • Fixed magic bytes used to detect tiff images.
  • Added DynamicImage::from_decoder.
  • Fixed a bug in the PNGReader that caused an infinite loop.
  • Added ColorType::{bits_per_pixel, num_components}.
  • Added ImageFormat::from_path, same format deduction as the open method.
  • Fixed a panic in the gif decoder.
  • Aligned background color handling of gif to web browser implementations.
  • Fixed handling of partial frames in animated gif.
  • Removed unused direct lzw dependency, an indirect dependency in tiff.

Version 0.22.1

  • Fixed build without no features enabled

Version 0.22

  • 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 unecessary '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

Version 0.21.2

  • Fixed a variety of crashes and opaque errors in webp
  • Updated the png limits to be less restrictive
  • Reworked even more unsafe operations into safe alternatives
  • Derived Debug on FilterType and Deref on Pixel
  • Removed a restriction on DXT to always require power of two dimensions
  • Change the encoding of RGBA in bmp using bitfields
  • Corrected various urls

Version 0.21.1

  • A fairly important bugfix backport
  • Fixed a potentially memory safety issue in the hdr and tiff decoders, see #885
  • See the full advisory for an analysis
  • Fixes ImageBuffer index calculation for very, very large images
  • Fix some crashes while parsing specific incomplete pnm images
  • Added comprehensive fuzzing for the pam image types

Version 0.21

  • Updated README to use GenericImageView
  • Removed outdated version number from CHANGES
  • Compiles now with wasm-unknown-emscripten target
  • Restructured ImageDecoder trait
  • Updated README with a more colorful example for the Julia fractal
  • Use Rust 1.24.1 as minimum supported version
  • Support for loading GIF frames one at a time with animation::Frames
  • The TGA decoder now recognizes 32 bpp as RGBA(8)
  • Fixed to_bgra document comment
  • Added release test script
  • Removed unsafe code blocks several places
  • Fixed overlay overflow bug issues with documented proofs

Version 0.20

  • Clippy lint pass
  • Updated num-rational dependency
  • Added BGRA and BGR color types
  • Improved performance of image resizing
  • Improved PBM decoding
  • PNM P4 decoding now returns bits instead of bytes
  • Fixed move of overlapping buffers in BMP decoder
  • Fixed some document comments
  • GenericImage and GenericImageView is now object-safe
  • Moved TIFF code to its own library
  • Fixed README examples
  • Fixed ordering of interpolated parameters in TIFF decode error string
  • Thumbnail now handles upscaling
  • GIF encoding for multiple frames
  • Improved subimages API
  • Cargo fmt fixes

Version 0.19

  • Fixed panic when blending with alpha zero.
  • Made save consistent.
  • Consistent size calculation.
  • Fixed bug in apply_with_alpha.
  • Implemented TGADecoder::read_scanline.
  • Use deprecated attribute for pixels_mut.
  • Fixed bug in JPEG grayscale encoding.
  • Fixed multi image TIFF.
  • PNM encoder.
  • Added #[derive(Hash)] for ColorType.
  • Use num-derive for #[derive(FromPrimitive)].
  • Added into_frames implementation for GIF.
  • Made rayon an optional dependency.
  • Fixed issue where resizing image did not give exact width/height.
  • Improved downscale.
  • Added a way to expose options when saving files.
  • Fixed some compiler warnings.
  • Switched to lzw crate instead of using built-in version.
  • Added ExactSizeIterator implementations to buffer structs.
  • Added resize_to_fill method.
  • DXT encoding support.
  • Applied clippy suggestions.

Version 0.4

  • Various improvements.
  • Additional supported image formats (BMP and ICO).
  • GIF and PNG codec moved into separate crates.

Version 0.3

  • Replace std::old_io with std::io.

Version 0.2

  • Support for interlaced PNG images.
  • Writing support for GIF images (full color and paletted).
  • Color quantizer that converts 32bit images to paletted including the alpha channel.
  • Initial support for reading TGA images.
  • Reading support for TIFF images (packbits and FAX compression not supported).
  • Various bug fixes and improvements.

Version 0.1

  • Initial release
  • Basic reading support for png, jpeg, gif, ppm and webp.
  • Basic writing support for png and jpeg.
  • A collection of basic imaging processing function like blur or invert