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image-webp

0.2.482M downloads/moimage-rs/image-webp ↗New releases in your daily digest, changelog included.

WebP encoding and decoding in pure Rust

Last release 1 years ago
27 Aug 2025
Ships fairly regularly
a new release about every 2 months
Nearly every release is documented
notes for 9 of 9 stable releases
Nothing withdrawn
no release was ever pulled
3 years old
9 releases · first in 2024

Release timeline

9 releases since 2024

202420252026

Releases

0.2.427 Aug 2025
Publish v0.2.4
Publish v0.2.4 (#157)
Open source →
Additional notes
Changes:

Changed default upscaling to bilinear interpolation to match libwebp (#147)

Bug fixes:

Fixed all remaining divergences against libwebp in loop filtering (#148, #149)

Optimizations:

Optimized predictors in lossless_transform (#152)

Improved performance of horizontal loop filtering (#151, #156)
Open source →
0.2.319 Jun 2025
Do not reject images with ICC profile bit set but missing ICCP chunk
Changes:

Do not reject images with ICC profile bit set but missing ICCP chunk (#143)

Bug Fixes:

Fixed a bug that caused the last chroma macroblock in the image to be sometimes decoded incorrectly (#144)

0.2.29 Jun 2025

Do not apply background color to animated images by default to better match libwebp behavior

Changes:

Do not apply background color to animated images by default to better match libwebp behavior (#135)

Bug Fixes:

Fixed a bug in the loop filter causing subtly but noticeably incorrect decoding of some lossy images (#140)

Optimizations:

Remove bounds checks from color transform hot loop (#133)
Optimize resolving indexed images into RGB colors (#132, #134)

Open source →

0.2.111 Jan 2025

Increased the required Rust compiler version to v1.80

Changes:

Increased the required Rust compiler version to v1.80

Optimizations:

Removed bounds checks from hot loops in read_coefficients() (#121)
Faster YUV -> RGBA conversion for a 7% speedup on lossy RGBA images (#122)
Faster alpha blending for up to 20% speedup on animated images (#123)
Much faster arithmetic decoding for up to 30% speedup on lossy images (#124)
Avoid unnecessarily cloning image data for a 4% speedup (#126)

Open source →

0.2.06 Oct 2024

WebPDecoder now requires the passed reader implement BufRead.

Breaking Changes:

WebPDecoder now requires the passed reader implement BufRead.

Changes:

Add EncoderParams to make predictor transform optional.

Bug Fixes:

Several bug fixes in animation compositing.
Fix indexing for filling image regions with tivial huffman codes.
Properly update the color cache when trivial huffman codes are used.

Optimizations:

Substantially faster decoding of lossless images, by switching to a table-based Huffman decoder and a variety of smaller optimizations.

Open source →

0.1.317 Jul 2024

Release 0.1.3

Release 0.1.3 (#80)

Open source →

Additional notes

Changes:

Accept files with out-of-order "unknown" chunks.
Switched to quick-error crate for faster compliation.

Bug Fixes:

Fixed decoding of animations with ALPH chunks.
Fixed encoding bug for extended WebP files.
Resolved compliation problem with fuzz targets.

Optimizations:

Faster YUV to RGB conversion.
Improved BitReader logic.
In-place decoding of lossless RGBA images.

Open source →

0.1.219 Apr 2024

Release 0.1.2

Release 0.1.2 (#65)

Open source →

Additional notes

Export decoder::LoopCount.
Fix decode bug in read_quantization_indices that caused some lossy images to appear washed out.
Switch to byteorder-lite crate for byte order conversions.

Open source →