OpenImageIO VS OpenEXR

Compare OpenImageIO vs OpenEXR and see what are their differences.


Reading, writing, and processing images in a wide variety of file formats, using a format-agnostic API, aimed at VFX applications. (by OpenImageIO)


The OpenEXR project provides the specification and reference implementation of the EXR file format, the professional-grade image storage format of the motion picture industry. (by AcademySoftwareFoundation)
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OpenImageIO OpenEXR
0 10
1,680 1,451
1.4% 1.8%
0.0 4.8
2 days ago 2 days ago
C++ C
BSD 3-clause "New" or "Revised" License GNU General Public License v3.0 or later
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.


Posts with mentions or reviews of OpenImageIO. We have used some of these posts to build our list of alternatives and similar projects.

We haven't tracked posts mentioning OpenImageIO yet.
Tracking mentions began in Dec 2020.


Posts with mentions or reviews of OpenEXR. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-03-09.

What are some alternatives?

When comparing OpenImageIO and OpenEXR you can also consider the following projects:

imagick - Go binding to ImageMagick's MagickWand C API

FreeImage - A custom distribution of FreeImage, with a CMake-based build system. Used by the Athena Game Framework.

OpenCV - Open Source Computer Vision Library

Boost.GIL - Boost.GIL - Generic Image Library | Requires C++14 since Boost 1.80

Video++ - Video++, a C++14 high performance video and image processing library.

SVG++ - C++ SVG library

libvips - A fast image processing library with low memory needs.

tesseract-ocr - Tesseract Open Source OCR Engine (main repository)

OpenMVG (open Multiple View Geometry) - open Multiple View Geometry library. Basis for 3D computer vision and Structure from Motion.


CImg - The CImg Library is a small and open-source C++ toolkit for image processing