Image transformation, compression, and decompression codecs

Imagecodecs is a Python library that provides block-oriented, in-memory buffer transformation, compression, and decompression functions for various image and scientific data formats. It wraps numerous C libraries to support a wide array of codecs, including Zlib, JPEG, PNG, WebP, AVIF, and many others. It is actively maintained with frequent releases, currently at version 2026.3.6, and primarily depends on NumPy.