# imageio/imageio

Python library for reading and writing image data

Repository: https://github.com/imageio/imageio
Canonical: https://ross.abutalabs.com/products/imageio
Homepage: https://imageio.readthedocs.io
Language: Python
License: BSD-2-Clause
License Family: permissive
Topics: python, imageio, animated-gif, video, webcam-capture, scientific-formats, dicom
Last push: 2026-08-15T16:18:27+00:00

## Health v2 (maintenance only)
Score: 92/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 97, release rhythm 81, longevity 100
- inputs: {"age_days": 4869, "days_push": 18, "days_rel": 44, "gap_med": 88.0, "n_releases_24m": 7}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1711, forks 351 (observed 2026-08-28T04:05:25.745876+00:00)

## What it is
Imageio is a mature Python library for reading and writing image and video data, including animated images, volumetric data, and scientific formats like DICOM and TIFF. It provides a simple, consistent API (imread/imwrite/imiter) that returns NumPy arrays and supports 295+ formats across Windows, Linux, and macOS.

## Use cases
- read and write images in python
- convert png to jpg
- create animated gifs from frames
- read video files with ffmpeg
- load dicom medical images
- read multi-page tiff stacks
- capture frames from a webcam
- load images as numpy arrays

## When to choose
- you need a simple, unified API for reading/writing many image and video formats
- you work with scientific or volumetric imaging data like TIFF or DICOM
- you want images returned directly as NumPy arrays for use with NumPy/SciPy/scikit-image
- you need cross-platform support with minimal core dependencies

## When to avoid
- you need advanced image manipulation features like filtering or transforms rather than just I/O
- you need GPU-accelerated image processing
- you are not working in Python or the NumPy ecosystem

## Facets
- artifact type: library
- maturity: stable
- function: image-processing, video-processing, file-system
- domain: image-processing, data-science, developer-tools
- platform: python, cross-platform, windows
- tags: image-io, animated-gif, dicom, tiff, numpy, scientific-imaging, volumetric-data, ffmpeg, video, linux, macos

## Member repositories
- imageio/imageio (main) score 92

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:25.745876+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:34:59.044917+00:00, confidence not recorded.
  - readme: https://github.com/imageio/imageio (fetched 2026-08-28T04:05:25.745876+00:00, sha 228fa8b6ab25)
  - registry_pypi: https://pypi.org/pypi/imageio/json (fetched 2026-08-29T11:11:30.096999+00:00, sha 9a4472cccbc1)
- Data as of 2026-08-30T08:39:29.467469+00:00.