AcademySoftwareFoundation/OpenImageIO

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

Stars: 2.4k
Forks: 698
Open beginner issues: 0
Indexed issues: 112
Avg merge: 3d 4h
Merged PRs (30d): 47

Dominant language: C++
License: Apache-2.0
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 14, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted good first issue

Open All

110 open issues indexed

add wrap mode arg to st_warp Open

AcademySoftwareFoundation/OpenImageIO#4102 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Using span and string_view instead of raw pointers Open

core APIs roadmap

AcademySoftwareFoundation/OpenImageIO#4159 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Convert the rest of ImageBufAlgo to use KWArgs where helpful Open

core APIs image processing roadmap

AcademySoftwareFoundation/OpenImageIO#4160 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] CMYK is being saved as RGB on export Open

AcademySoftwareFoundation/OpenImageIO#4170 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] When using ImageBuf, this file reports a divide-by-zero exception error. Please take a look Open

bug difficulty/easy help wanted texture / image cache

AcademySoftwareFoundation/OpenImageIO#4185 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
an example program using OIIO's batched environment lookup Open

AcademySoftwareFoundation/OpenImageIO#4186 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
making a stab at generated images by bending the null image plugin Open

AcademySoftwareFoundation/OpenImageIO#4197 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[FEATURE REQUEST] ImageBuf "wrap" numpy array in python Open

difficulty/easy feature request help wanted python

AcademySoftwareFoundation/OpenImageIO#4259 · 2 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] TIFFs saved with CMYK ColorSpace always get converted to 8-bit Open

AcademySoftwareFoundation/OpenImageIO#4286 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] Sony ARW medium and small compression 15 bit per sample files are unsupported Open

bug file formats

AcademySoftwareFoundation/OpenImageIO#4361 · 18 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[BUG] Unable to sample UDIMs from pre-populated in-memory ImageCache Open

AcademySoftwareFoundation/OpenImageIO#4378 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[FEATURE REQUEST] Add self-building abilities for more dependencies Open

build / testing / port / CI devdays devdays24 devdays25 difficulty/easy good first issue help wanted

AcademySoftwareFoundation/OpenImageIO#4387 · 17 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] assert_fail is called Open

AcademySoftwareFoundation/OpenImageIO#4388 · 18 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Consider running StepSecurity on your repo Open

AcademySoftwareFoundation/OpenImageIO#4405 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[FEATURE REQUEST] Link to a source code from OpenImageIO documentation Open

docs

AcademySoftwareFoundation/OpenImageIO#4406 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUILD] Current version `lib` symlinks showing up in build from previous version Open

AcademySoftwareFoundation/OpenImageIO#4414 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[MEMORY] Reduce file descriptors memory footprint in the ImageCache Open

AcademySoftwareFoundation/OpenImageIO#4436 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG]Issue on transparent background with ImageBufAlgo.over Open

AcademySoftwareFoundation/OpenImageIO#4474 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[API CHANGE SUGGESION] Make `TextureOpt::missingcolor` a `cspan` Open

AcademySoftwareFoundation/OpenImageIO#4483 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Investigate switching to to libspng Open

build / testing / port / CI file formats help wanted mackerel :fishing_pole_and_fish:

AcademySoftwareFoundation/OpenImageIO#4524 · 3 comments · 8 reactions · 0 assignees · Indexed Sep 14, 2026
[DOCS] `ParamValue` is undocumented Open

AcademySoftwareFoundation/OpenImageIO#4537 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] TextureSystem: sample with gray_to_rgb possible crash if there are filesystem errors Open

AcademySoftwareFoundation/OpenImageIO#4544 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[INVESTIGATION] ImageBuffer iterators based on Space Filling Curves Open

AcademySoftwareFoundation/OpenImageIO#4554 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add Wrap::UDIM mode for proper UDIM filtering Open

feature request texture / image cache

AcademySoftwareFoundation/OpenImageIO#4563 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Provide a type and memory safe interface for `attribute` Open

core APIs

AcademySoftwareFoundation/OpenImageIO#4566 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Docs] `Perthread` and `TextureOptBatch` docs are missing Open

AcademySoftwareFoundation/OpenImageIO#4575 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Frame on Frame RAM Increase Using PyBindings for 3.1.0 Converting EXR To Uncompressed PNG Open

bug good first issue

AcademySoftwareFoundation/OpenImageIO#4613 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] Performance regression loading EXR files Open

internals performance

AcademySoftwareFoundation/OpenImageIO#4629 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Tracking Issue for Rust Bindings Open

AcademySoftwareFoundation/OpenImageIO#4632 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[FEATURE REQUEST] ICC profile support for HEIF Open

bug enhancement file formats help wanted

AcademySoftwareFoundation/OpenImageIO#4650 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] Slow read performance for multichannel EXRs in oiiotool Open

performance

AcademySoftwareFoundation/OpenImageIO#4707 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
iv Dark mode Open

devdays difficulty/easy good first issue help wanted iv

AcademySoftwareFoundation/OpenImageIO#4710 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
iv: make a difference mode: shows you the absdiff between the current image and the last image. Open

good first issue help wanted iv

AcademySoftwareFoundation/OpenImageIO#4711 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
iv wipe mode Open

difficulty/easy good first issue help wanted iv

AcademySoftwareFoundation/OpenImageIO#4712 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
iv: tolerate/display partially-written exr files (originally #1191). Open

devdays difficulty/easy good first issue help wanted iv

AcademySoftwareFoundation/OpenImageIO#4713 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
iv: "Save window" doesn't work -- it saves the whole image Open

bug devdays good first issue help wanted iv

AcademySoftwareFoundation/OpenImageIO#4716 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
iv: runtime help Open

good first issue help wanted iv

AcademySoftwareFoundation/OpenImageIO#4717 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
iv: Help menu / documentation Open

docs good first issue help wanted iv

AcademySoftwareFoundation/OpenImageIO#4720 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] HEIF library impedance mismatch Open

build / testing / port / CI file formats

AcademySoftwareFoundation/OpenImageIO#4732 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] Segmentation Fault when Running Unit Tests using Python Wheel Open

AcademySoftwareFoundation/OpenImageIO#4742 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[FEATURE REQUEST] Global attrib to enable/disable formats Open

difficulty/easy file formats good first issue help wanted

AcademySoftwareFoundation/OpenImageIO#4759 · 3 comments · 1 reaction · 1 assignee · Indexed Sep 14, 2026
Need Testing.md Open

build / testing / port / CI docs

AcademySoftwareFoundation/OpenImageIO#4760 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 14, 2026
[FEATURE REQUEST] Add [[nodiscard]] to image read/write methods Open

core APIs devdays difficulty/easy good first issue help wanted

AcademySoftwareFoundation/OpenImageIO#4781 · 10 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
API to read ImageInput into ImageBuf Open

core APIs roadmap

AcademySoftwareFoundation/OpenImageIO#4806 · 6 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
[HELP] library conflicts with official Python wheels in 3dsMax Open

build / testing / port / CI

AcademySoftwareFoundation/OpenImageIO#4808 · 22 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
possible build improvement: not so many wheels every single time? Open

build / testing / port / CI python

AcademySoftwareFoundation/OpenImageIO#4821 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[FEATURE REQUEST] Need expanded queries about formats Open

core APIs

AcademySoftwareFoundation/OpenImageIO#4853 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
future feature: how to deal with multiple thumbnails? Open

core APIs file formats

AcademySoftwareFoundation/OpenImageIO#4888 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Consider switching GUI toolkits for iv Open

help wanted iv roadmap strategic

AcademySoftwareFoundation/OpenImageIO#4897 · 12 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] OpenImageIO's default thread pool initialization has a data race. Open

AcademySoftwareFoundation/OpenImageIO#4922 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026

AcademySoftwareFoundation/OpenImageIO

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