glymur

library0.14.8pypypiunverified

Python library for reading and writing JPEG 2000 files, wrapping the OpenJPEG library. Current version 0.14.7, requires Python >=3.11, release cadence irregular.

data serialization

pip install glymur

github ↗package ↗homepage ↗docs ↗

INSTALL

IMPORT

SIG · GLYMUR

glymur

datapythonv0.14.8

Install

4.9s avg

Import

435ms

Disk

125MB

Pass rate

10/ 10

Env Coverage10 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v0.14.0.post1 · pip install

no network on importno background threads

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

py 3.10–3.95 runs

installs and imports cleanly · install 0.0s · import 0.100s · 127.2MB

glibc

py 3.10–3.95 runs

installs and imports cleanly · install 4.9s · import 0.074s · 124MB

125MB installed

● package 125MB

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

glymur

✓ import glymur

✗ import glymur

Read and write JPEG 2000 images with glymur.

import glymur # Open a JPEG 2000 file jp2 = glymur.Jp2k('input.jp2') print('Shape:', jp2.shape) print('Image data:', jp2[:]) # Write a JPEG 2000 file import numpy as np data = np.random.randint(0, 256, (256, 256), dtype=np.uint8) glymur.Jp2k('output.jp2', data=data) # or use jp2.write(data)

Debug

Known issues

breakingVersion 0.14 dropped support for Python 3.9 and 3.10. Requires Python >=3.11.

fix

Upgrade Python to 3.11 or later.

affects: 0.14+

breakingIn 0.14, the 'crat' and 'cdef' family of attributes were removed from Codestream. Use 'compression_ratios' and 'color_space' instead.

fix

Replace jp2.codestream.crat with jp2.codestream.compression_ratios and jp2.codestream.cdef with jp2.codestream.color_space.

affects: 0.14+

gotchaglymur relies on OpenJPEG system library; missing or incompatible libopenjp2 can cause ImportError or silent failures.

fix

Install OpenJPEG via system package manager or conda (e.g., conda install -c conda-forge openjpeg).

affects: all

gotchaJp2k object indexing returns a view, not a copy; modifying the slice modifies the underlying data in place.

fix

Use .copy() if you need a separate array.

affects: all

deprecatedThe glymur.Jp2k.read() method is deprecated in favor of direct indexing (jp2[:]) or waveform reading.

fix

Use jp2[:] to read full image data.

affects: 0.10+

Upgrade

Version history

0.14.8latest on PyPI · released May 13, 2026

Audit

Dependencies

numpyrequiredArray operations for image data

packagingrequiredVersion parsing utilities

Agent activity

29 hits · last 30 days

node

Resources

githubhttps://github.com/quintusdias/glymur ↗

packagehttps://pypi.org/project/glymur/ ↗

homepagehttps://glymur.readthedocs.io ↗

docshttps://glymur.readthedocs.io ↗