Bump imagecodecs from 2025.3.30 to 2026.6.6

[dependabot]

Bumps imagecodecs from 2025.3.30 to 2026.6.6.

Release notes

Sourced from imagecodecs's releases.

v2026.6.6

Image transformation, compression, and decompression codecs

Imagecodecs is a Python library that provides block-oriented, in-memory buffer transformation, compression, and decompression functions for use in tifffile, liffile, czifile, zarr, and other scientific image input/output packages.

Decode and/or encode functions are implemented for the following codecs, image formats, and data transforms: Zlib (DEFLATE), GZIP, LZMA, ZStandard (ZSTD), Blosc, Brotli, Snappy, BZ2, LZ4, LZ4F, LZ4HC, LZ4H5, LZW, LZO, LZF, LZFSE, LZHAM, PGLZ (PostgreSQL LZ), RCOMP (Rice), HCOMP, PLIO, ZFP, SZ3, Meshopt, Pcodec, SPERR, AEC, SZIP, LERC, EER, ZSTD1 (Zstd with hilo filter), NPY, BCn, DDS, BMP, PNG, APNG, GIF, PCX/DCX, TGA (TARGA), TIFF, WebP, JPEG (2 to 16-bit), Lossless JPEG (LJPEG, LJ92, JPEGLL), JPEG 2000 (JP2, J2K), High-throughput JPEG 2000 (HTJ2K, JPH), JPEG LS, JPEG XL, JPEG XS, JPEG XR (WDP, HD Photo), Ultra HDR (JPEG_R), MOZJPEG, AVIF, HEIF, EXR, WIC (Windows Imaging Component), WavPack, QOI, RGBE (HDR), PixarLog, Jetraw, DICOM RLE, CCITT (RLE, T.4 and T.6), PackBits, Packed Integers (TIFF, MONO p and packed), Delta, XOR Delta, Floating Point Predictor, Bitorder reversal, Byteshuffle, Bitshuffle, Float24 (24-bit floating point), Bfloat16 (brain floating point), Quantize (Scale, BitGroom, BitRound, GranularBR), and CMS (color space transformations). Checksum functions are implemented for CRC-32, Adler-32, Fletcher-32, and Jenkins lookup3.

Changes

• Limit IntEnum parameters to documented values (breaking).
• Optimize lzw_decode and remove buffersize parameter (breaking).
• Fix floatpred_encode for zero-stride data (#138).
• Add ZSTD1 codec with optional hilo byte shuffle and BGR to RGB conversion.
• Add cms_info function.
• Add spng_encode filter parameter.
• Add Zarr 3 compatible PCX and TGA codecs.
• Support Python 3.15.

v2026.5.10

Image transformation, compression, and decompression codecs

Imagecodecs is a Python library that provides block-oriented, in-memory buffer transformation, compression, and decompression functions for use in tifffile, liffile, czifile, zarr, and other scientific image input/output packages.

Decode and/or encode functions are implemented for the following codecs, image formats, and data transforms: Zlib (DEFLATE), GZIP, LZMA, ZStandard (ZSTD), Blosc, Brotli, Snappy, BZ2, LZ4, LZ4F, LZ4HC, LZ4H5, LZW, LZO, LZF, LZFSE, LZHAM, PGLZ (PostgreSQL LZ), RCOMP (Rice), HCOMP, PLIO, ZFP, SZ3, Meshopt, Pcodec, SPERR, AEC, SZIP, LERC, EER, NPY, BCn, DDS, BMP, PNG, APNG, GIF, PCX/DCX, TGA (TARGA), TIFF, WebP, JPEG (2 to 16-bit), Lossless JPEG (LJPEG, LJ92, JPEGLL), JPEG 2000 (JP2, J2K), High-throughput JPEG 2000 (HTJ2K, JPH), JPEG LS, JPEG XL, JPEG XS, JPEG XR (WDP, HD Photo), Ultra HDR (JPEG_R), MOZJPEG, AVIF, HEIF, EXR, WIC (Windows Imaging Component), WavPack, QOI, RGBE (HDR), PixarLog, Jetraw, DICOM RLE, CCITT (RLE, T.4 and T.6), PackBits, Packed Integers (TIFF, MONO p and packed), Delta, XOR Delta, Floating Point Predictor, Bitorder reversal, Byteshuffle, Bitshuffle, Float24 (24-bit floating point), Bfloat16 (brain floating point), Quantize (Scale, BitGroom, BitRound, GranularBR), and CMS (color space transformations). Checksum functions are implemented for CRC-32, Adler-32, Fletcher-32, and Jenkins lookup3.

Changes

• Add Zarr 3 compatible codecs.
• Add WIC codec based on Windows Imaging Component.
• Add EXR codec based on OpenEXRCore library.
• Add WAVPACK codec based on WavPack library.
• Add HCOMP and PLIO codecs based on modified cfitsio library.
• Add TGA and PCX/DCX legacy codecs.
• Add option to pass SDR image to ultrahdr_encode.
• Add option to specify primaries and transferfunction in jpegxl_encode (#137).
• Add animated WebP encoding and decoding of all frames (breaking).
• Remove cms_encode and cms_decode aliases for cms_transform (breaking).
• Determine colorspace/pixeltype from profiles in cms_transform.
• Allow to pass IntEnum parameters as strings except for levels.
• Support decoding RLE8 and RLE4 compressed BMP.
• Link zopfli_encode level to numiterations parameter.
• Unify image layout handling in encode functions.
• Fix code review issues.
• Drop support for numpy 2.0 (SPEC0), Python 3.11, and macosx_x86_64.

v2026.3.6

Image transformation, compression, and decompression codecs

Imagecodecs is a Python library that provides block-oriented, in-memory buffer transformation, compression, and decompression functions for use in tifffile, liffile, czifile, zarr, and other scientific image input/output packages.

... (truncated)

Changelog

Sourced from imagecodecs's changelog.

2026.6.6

• Limit IntEnum parameters to documented values (breaking).
• Optimize lzw_decode and remove buffersize parameter (breaking).
• Fix floatpred_encode for zero-stride data (#138).
• Add ZSTD1 codec with optional hilo byte shuffle and BGR to RGB conversion.
• Add cms_info function.
• Add spng_encode filter parameter.
• Add Zarr 3 compatible PCX and TGA codecs.
• Support Python 3.15.

2026.5.10

• Add Zarr 3 compatible codecs.
• Add WIC codec based on Windows Imaging Component.
• Add EXR codec based on OpenEXRCore library.
• Add WAVPACK codec based on WavPack library.
• Add HCOMP and PLIO codecs based on modified cfitsio library.
• Add TGA and PCX/DCX legacy codecs.
• Add option to pass SDR image to ultrahdr_encode.
• Add option to specify primaries and transferfunction in jpegxl_encode (#137).
• Add animated WebP encoding and decoding of all frames (breaking).
• Remove cms_encode and cms_decode aliases for cms_transform (breaking).
• Determine colorspace/pixeltype from profiles in cms_transform.
• Allow to pass IntEnum parameters as strings except for levels.
• Support decoding RLE8 and RLE4 compressed BMP.
• Link zopfli_encode level to numiterations parameter.
• Unify image layout handling in encode functions.
• Fix code review issues.
• Drop support for numpy 2.0 (SPEC0), Python 3.11, and macosx_x86_64.

2026.3.6

• Add CCITTRLE, CCITTFAX3 and CCITTFAX4 codecs (decode only).
• Implement packints_encode function.
• Support lerc subcodec in tiff_encode function.
• Support packed integers, ccitt and pixarlog compression in TIFF codec.
• Support bitorder option in PACKINTS codec.
• Support rounding in BFLOAT16 codec.
• Support more BMP types.
• Update PCODEC to new API.
• Fix buffer overflows in third-party code.
• Fix code review issues.

2026.1.14

• Add tiff_encode function.
• Add extra options for HTJ2K (#134).
• Add linear RGB option to cms_profile.
• Change ZSTD default compression level to 3.

... (truncated)

Commits

• a160063 Release v2026.6.6
• a60a59d Update CHANGES.rst
• 2ce5f9b Update tests/test_imagecodecs.py
• a377917 Update tests/test_zarr.py
• 0f82578 Update imagecodecs/imagecodecs.py
• 7011cbe Update imagecodecs/_zfp.pyx
• eb40d56 Update imagecodecs/_jpegxr.pyx
• 8527f2e Update imagecodecs/init.pyi
• 515b235 Update imagecodecs/_apng.pyx
• a404f22 Update imagecodecs/_avif.pyx
• Additional commits viewable in compare view

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