Reading, writing, and processing images in a wide variety of file formats, using a format-agnostic API, aimed at VFX applications.
C-Rank Grade: A (Welcoming) - 64/100
External PR Merge Rate: 85%
Response Time: -
First Timer Success: 71%
AcademySoftwareFoundation/OpenImageIO has a recorded first-timer success rate of 71.4%. Repositories ranked A typically provide actionable feedback during code reviews and actively nurture new community contributors.
Maintainers in AcademySoftwareFoundation/OpenImageIO respond to incoming external pull requests in approximately 0.0 hours on average. Keeping PRs focused on single tasks and ensuring tests pass helps maintainers review faster.
The C-Rank™ system evaluates GitHub projects on a 0–100 scale using real data: PR merge rates, review turnaround time, active maintainer presence, and first-time contributor success. A score of 63.6 places AcademySoftwareFoundation/OpenImageIO in the A tier.
The external contributor pull request merge rate for AcademySoftwareFoundation/OpenImageIO is 85.1%, based on public PR activity from non-core contributors.
AcademySoftwareFoundation/OpenImageIO currently has 1 active issue(s) tagged with beginner-friendly labels like "good first issue", "beginner", or "up-for-grabs".
Highly welcoming maintainers in AcademySoftwareFoundation/OpenImageIO. Prompt code reviews with positive guidance for new contributors.
Average Response Latency
Tracks hours until a maintainer leaves a review, comment, or PR response.
External Acceptance Rate
Percentage of community pull requests successfully merged into main.
First PR Conversion
Rate at which developers submitting their first repository PR succeed.
Show contributors that your repository actively reviews and merges external pull requests.
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Historical health & responsiveness evolution
External PR acceptance
First PR success rate
50% receive response in
90% receive response in
Maintainer review activity heatmap & prime window prediction
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Detected: UTC
Maintainers are most responsive around 03:00 UTC (03:00 UTC in your timezone). Recommended submission window is Monday - Wednesday from 01:00 to 05:00 UTC (01:00 - 05:00 UTC local).
Maintainer Strategy: Maintainer Sweet Spot: PRs under 150 lines merge in ~16 hours (96% approval). Large PRs (>500 lines) take ~115 hours (38% approval). Keep your diff compact for rapid review.
Our python stubs (which provide full type information for our python bindings) currently lives as a separate file checked into the repo, which must be regenerated and re-committed any time the Python bindings change. Now that we've switched to nanobind, I think we can use its built-in stubgen to generate them correctly and automatically every time we build the bindings, rather than being a separate checked-in file that could fall out of sync.
It would be handy for the command line expression syntax (things like {2 * TOP.width}) had a fully general way to do string formatting. This may be kind of involved, but I think it's worth doing. We'll use this issue to track progress and flesh out a spec for it. As a motivating example, see #5207, where we posit the utility of something like --offset "{format('{:+}{:+}',X,Y}" There's a bit of ugliness coming from the fact that we use {} in oiiotool for indicating expressions, but also {} inside the format specifications, and I'm not sure if it will end up needing special quoting. But the advantage of going for a fully general formatting utility that can be used in expression evaluation means that it not only solves your problem, but likely also unlocks a whole bunch of interesting additional usages.
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When evaluating whether to contribute to AcademySoftwareFoundation/OpenImageIO, response velocity and maintainer engagement are crucial. GetMerged continuously tracks pull request trajectories, first-comment latency, and code review rounds to help developers avoid submitting pull requests to backlogged repositories.
Currently, maintainers of AcademySoftwareFoundation/OpenImageIO acknowledge new external contributions in approximately -. Out of all submitted pull requests from non-core authors in the last 180-day window, 85.1% were successfully merged into the primary branch.
AcademySoftwareFoundation/OpenImageIO has a recorded first-timer success rate of 71.4%. Repositories ranked Welcoming typically provide actionable feedback during code reviews and actively nurture new community contributors.
The initial maintainer response time averages ~-. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.
The C-Rank™ index scores repositories on a 0 to 100 scale using an objective formula: external PR merge rates, initial response speed, active maintainer count, and first-time contributor retention. A score of 63.6 places AcademySoftwareFoundation/OpenImageIO in the Welcoming tier.
The external pull request merge rate is 85.1%. GetMerged isolates non-core community contributions so external developers get an accurate benchmark of PR acceptance probability.
Yes, AcademySoftwareFoundation/OpenImageIO currently has 1 active issue(s) tagged with beginner-friendly labels. You can inspect these directly from the repository issues tab.
All metrics displayed for AcademySoftwareFoundation/OpenImageIO are automatically retrieved via the public GitHub API and recalculated daily. Insider pull requests submitted by repository owners or organization members are excluded from merge rate calculations to preserve objective external contributor statistics.