Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-09-13 16:24 UTC

imazen / ultrahdr

Pure Rust Ultra HDR (gain map HDR) encoder/decoder

RustApache-2.0★ 17 stars⑂ 0 forkssince Jan 2026View on GitHub ↗

imazen/ultrahdr holds a health index of 75 out of 100, placing it in the Good band. It scores highest on Vitality (86/100) and lowest on Community & Adoption (42/100). It was last updated 13 days ago. A single contributor accounts for most of its recent work.

75
overall / 100
Good

Software health index

Metrics are grouped into weighted categories on one standardized 1–100 scale. Overall starts as their weighted mean, calibrated against the distribution of the public record so bands carry percentile meaning; when public evidence triggers the High-Risk Jurisdiction Policy, the rating is adjusted and receives an At Risk ceiling of 34.

75
Exceptional93-100The record's top tier (≈ top 5%); essentially all checked criteria met
Excellent80-92Strong across the board; minor gaps
Good65-79Healthy; gaps are limited and manageable
Moderate50-64Acceptable with notable gaps; review recommended
Weak35-49Material weaknesses across several areas
At Risk20-34Significant weaknesses; adoption warrants caution
Critical1-19Severe problems (abandoned, single-maintainer, no hygiene)
VitalityCommunity &AdoptionSustainability &GovernanceEngineeringQualitySecurityAI Readiness

Score profile

Each axis is a category. The shape matters more than the average — a healthy subject fills the whole shape, while a spike-and-crater profile means strength in one dimension is masking risk in another.

The weighted overall 65 is calibrated to 75 on the published index scale (record calibration 2026-08-02).

Ownership

ImazenOrganization · verified domain
52 followers222 public repossince May 2012

This repository is backed by an organization — shared, accountable stewardship that can outlive any single maintainer.

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
crates.iowasm-bench0.2.032536 days ago
crates.ioultrahdr-rs0.3.55058155 days agogainmaphdrimagejpegultrahdrencoding
crates.ioultrahdr-core0.6.08,3491250 days agogainmaphdrimageno-stdultrahdrencoding

Metrics by category

Vitality

Is the project alive — is code being written and are releases shipping?

86Excellent · 21% of overall
How it's scored
28.8/36Push recencylast push 13 days ago
19.4/36Commit cadence28/52 weeks with commits
18/18Commit volume314 commits in the last year
10/10OpenSSF Scorecard: Maintained30 commit(s) and 5 issue activity found in the last 90 days -- score normalized to 10
Inputs used
commits_last_year314
human_commit_share1
days_since_last_push13
active_weeks_last_year28

Release discipline

100Exceptional
How it's scored
27/27Ships releases9 releases published
36/36Release recencylatest release 50 days ago
27/27Release cadencea release every ~14.6 days
0/10OpenSSF Scorecard: Signed-Releasesno data
Inputs used
releases_count9
latest_release_tagultrahdr-rs-v0.4.1
releases_from_tagsno
days_since_latest_release50
mean_days_between_releases14.6
Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Signed-Releases. Remaining weights renormalized.

Community & Adoption

Does the project have users, downloads, attention, and a welcoming setup for contributors?

42Weak · 17% of overall
How it's scored
19.5/60Stars17 stars
0/25Forks0 forks
0/15Watchers1 watchers
Inputs used
forks0
stars17
watchers1
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history
How it's scored
22.5/22.5README
22.5/22.5Licenserecognized license (Apache-2.0)
0/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges7
has_contributingno
has_issue_templateno
has_code_of_conductno
readme_badge_servicesshields.io
has_pull_request_templateno
How it's scored
52.6/80Monthly downloads8,854 downloads/month across crates
0/20Registry dependentsnot reported by this ecosystem
Inputs used
packagesultrahdr-rs, ultrahdr-core
dependents
ecosystemscrates
total_downloads40,952
monthly_downloads8,854
unverified_packages_excludedwasm-bench
Excluded from scoring (no data or not applicable): Registry dependents. Remaining weights renormalized.

Sustainability & Governance

Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?

63Moderate · 23% of overall
How it's scored
9/54Bus factor1 contributor(s) cover half of all commits
0/22.5Commit distributiontop contributor authored 100% of commits
1.4/13.5Contributor breadth1 contributors
3/10OpenSSF Scorecard: Contributorsproject has 1 contributing companies or organizations -- score normalized to 3
Inputs used
bus_factor1
contributors_sampled1
top_contributor_share1
How it's scored
42/42Issue resolution100% of issues closed
18.9/30PR acceptance12/19 decided PRs merged
0/13Newcomer PR acceptanceno first-time contributor's PR decided in 30d
0/15OpenSSF Scorecard: Code-ReviewFound 0/30 approved changesets -- score normalized to 0
Inputs used
merged_prs12
open_issues0
closed_issues14
prs_merged_7d0
prs_decided_7d0
prs_merged_30d0
prs_decided_30d0
issue_closed_ratio1
closed_unmerged_prs7
first_time_authors_30d0
first_time_prs_merged_30d0
first_time_prs_decided_30d0
Excluded from scoring (no data or not applicable): Newcomer PR acceptance. Remaining weights renormalized.
How it's scored
30/30Ownership backingorganization-owned
20/20Verified domain
12.4/25Owner reach52 followers of imazen
25/25Track record222 public repos, account ~14 yr old
Inputs used
followers52
owner_typeOrganization
is_verifiedyes
owner_loginimazen
public_repos222
account_age_days5,227

Package maintenance

100Exceptional
How it's scored
25/25Published & resolvable3 package(s) on crates
35/35Publish recencylatest publish 50 days ago
20/20Version history12 published versions
20/20Not deprecatedactive, not deprecated or yanked
Inputs used
packageswasm-bench, ultrahdr-rs, ultrahdr-core
ecosystemscrates
any_deprecatedno
min_days_since_publish50

Engineering Quality

Are baseline engineering and documentation practices in place?

72Good · 19% of overall
How it's scored
24/24CI workflows3 workflow(s)
24/24Tests present
0/16Linter config
0/9.6Pre-commit hooks
0/6.4.editorconfig
0/20OpenSSF Scorecard: CI-Testsno data
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configno
has_precommit_configno
Excluded from scoring (no data or not applicable): OpenSSF Scorecard: CI-Tests. Remaining weights renormalized.

Documentation

90Excellent
How it's scored
30/30README
25/25Documentation directory
15/15Documentation / homepage sitehttps://docs.rs/wasm-bench
10/10Repository description
0/10Topics
10/10Wiki
Inputs used
topics
has_wikiyes
homepage
docs_sitehttps://docs.rs/wasm-bench
has_readmeyes
has_docs_diryes
has_descriptionyes

Security

Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?

56Moderate · 16% of overall
How it's scored
7.5/7.5Binary-Artifactsno binaries found in the repo
0/7.5Branch-Protectionbranch protection not enabled on development/release branches
0/2.5CI-Testsno data
0/2.5CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
0/7.5Code-ReviewFound 0/30 approved changesets -- score normalized to 0
0.8/2.5Contributorsproject has 1 contributing companies or organizations -- score normalized to 3
10/10Dangerous-Workflowno dangerous workflow patterns detected
0/7.5Dependency-Update-Toolno update tool detected
5/5Fuzzingproject is fuzzed
2.5/2.5Licenselicense file detected
7.5/7.5Maintained30 commit(s) and 5 issue activity found in the last 90 days -- score normalized to 10
0/5Packagingno data
0/5Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
0/5SASTno SAST tool detected
0/5Security-Policysecurity policy file not detected
0/7.5Signed-Releasesno data
0/7.5Token-Permissionsdetected GitHub workflow tokens with excessive permissions
6.8/7.5Vulnerabilities1 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated15
scorecard_versionv5.5.0
checks_inconclusive3
scorecard_aggregate4.4
Excluded from scoring (no data or not applicable): CI-Tests, Packaging, Signed-Releases. Remaining weights renormalized.

Dependency advisories

100Exceptional
How it's scored
35/35Direct dependencies free of known advisoriesno direct dependency carries a known advisory
0/25Indirect dependencies free of known advisoriestransitive set not separable from development and test dependencies in this scope
0/40No advisories left outstandingno advisory carries a publication date
Inputs used
sourceosv
advisories1
affected_packages1
assessed_packages87
unassessed_packages24
affected_by_severityunknown 1
direct_affected_packages0
Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories, No advisories left outstanding. Remaining weights renormalized. Matched 87 resolved dependencies against OSV. 24 could not be assessed — no resolved version, an unsupported ecosystem, or beyond the reported package list. This repository publishes no package the index resolves, so the repository dependency graph was assessed instead. That graph mixes development and test pins with shipped dependencies, so only the declared runtime dependencies are scored; transitive findings are reported as context and excluded from the score. Reachability is not analyzed.

AI Readiness

How well is the repo equipped to be developed and maintained with AI coding agents? Carries a deliberately small weight (4%): agent tooling is a real maintenance signal, but a repository with none can still reach 100/100.

79Good · 4% of overall
How it's scored
45/45Agent instructionsCLAUDE.md
0/15Machine-readable docs (llms.txt)
40/40Legible commit history100 of 100 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url
legible_history_share1
agent_instruction_filesCLAUDE.md
agent_instruction_max_bytes11,211
How it's scored
18/18One-command bootstrapjustfile
22/22Automated tests
0/11Lint / format config
11/11Static type checkingRust (statically typed)
10/10Reproducible environmentDockerfile, lockfile
0/10Demonstrated agent practiceno agent-authored commits among the last 100
0/8Automated maintenanceno automated dependency updates observed
0/10OpenSSF Scorecard: Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
Inputs used
has_nixno
has_testsyes
lockfilesCargo.lock
has_dockerfileyes
typed_languageyes
bootstrap_filesjustfile
has_devcontainerno
has_linter_configno
typecheck_configs
agent_commit_share0
toolchain_manifestsCargo.toml, apidoc/Cargo.toml, fuzz/Cargo.toml, ultrahdr-core/Cargo.toml, ultrahdr-rs/Cargo.toml, wasm-bench/Cargo.toml
dependency_bot_commit_share0
How it's scored
45/45Type-checkable codeRust (statically typed)
52.2/55Manageable file sizes3/58 source files over 60KB
Inputs used
primary_languageRust
largest_source_bytes84,160
source_files_sampled58
oversized_source_files3
How it's scored
0/40API schema (OpenAPI/GraphQL/proto)not applicable to this kind of software
0/20MCP servernot applicable to this kind of software
40/40Runnable examplesexamples
Inputs used
example_dirsexamples
has_mcp_signalno
api_schema_files
interfaces_expected_of
Excluded from scoring (no data or not applicable): API schema (OpenAPI/GraphQL/proto), MCP server. Remaining weights renormalized.

Key facts

17GitHub stars
1contributors
314commits, last 12 months
13days since last push
9releases
1bus factor
0open issues
crates.iopackage ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
  • Could not fetch crates package 'ultrahdr-apidoc' from its registry

More detail

OpenSSF Scorecard 4.4 / 10
4.4aggregate

Independent, tool-agnostic security assessment from the open-source OpenSSF Scorecard. Each check rewards a security practice, not a specific vendor's tool. Checks Scorecard could not determine are marked n/a and excluded from the security score (never counted as zero).Scorecard v5.5.0 · 2026-09-13 16:24 UTC

10Binary-Artifactsno binaries found in the repo
0Branch-Protectionbranch protection not enabled on development/release branches
n/aCI-Testsno pull request found
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
0Code-ReviewFound 0/30 approved changesets -- score normalized to 0
3Contributorsproject has 1 contributing companies or organizations -- score normalized to 3
10Dangerous-Workflowno dangerous workflow patterns detected
0Dependency-Update-Toolno update tool detected
10Fuzzingproject is fuzzed
10Licenselicense file detected
10Maintained30 commit(s) and 5 issue activity found in the last 90 days -- score normalized to 10
n/aPackagingpackaging workflow not detected
0Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
0SASTno SAST tool detected
0Security-Policysecurity policy file not detected
n/aSigned-Releasesno releases found
0Token-Permissionsdetected GitHub workflow tokens with excessive permissions
9Vulnerabilities1 existing vulnerabilities detected
Direct dependencies 26
RegistryPackageVersion constraintManifest
crates.iozenutils-apidoc0.1.0apidoc/Cargo.toml
crates.ioenough0.4ultrahdr-core/Cargo.toml
crates.iohalf2.7.1ultrahdr-core/Cargo.toml
crates.ioarchmage0.9.16ultrahdr-core/Cargo.toml
crates.iomagetypes0.9.16ultrahdr-core/Cargo.toml
crates.iobytemuck1.25.2ultrahdr-core/Cargo.toml
crates.iothiserror2.0.20ultrahdr-core/Cargo.toml
crates.iowhereat0.1.5ultrahdr-core/Cargo.toml
crates.iolinear-srgb0.6.12ultrahdr-core/Cargo.toml
crates.iozenpixelsultrahdr-core/Cargo.toml
crates.iozencodecultrahdr-core/Cargo.toml
crates.iozentone0.1.0ultrahdr-core/Cargo.toml
crates.iozenresizeultrahdr-core/Cargo.toml
crates.iozenpixels-convert>=0.2.15, <0.4.0ultrahdr-core/Cargo.toml
crates.ioultrahdr-coreultrahdr-rs/Cargo.toml
crates.iomoxcmsultrahdr-rs/Cargo.toml
crates.ioimgrefultrahdr-rs/Cargo.toml
crates.iorgbultrahdr-rs/Cargo.toml
crates.iobytemuckultrahdr-rs/Cargo.toml
crates.iothiserrorultrahdr-rs/Cargo.toml
crates.iowhereat0.1.5ultrahdr-rs/Cargo.toml
crates.ioenoughultrahdr-rs/Cargo.toml
crates.iozenjpegultrahdr-rs/Cargo.toml
crates.iozencodecultrahdr-rs/Cargo.toml
crates.iozenpixelsultrahdr-rs/Cargo.toml
crates.ioultrahdr-corewasm-bench/Cargo.toml
All dependencies 111

Full resolved dependency set from the GitHub dependency graph: 29 direct and 82 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
crates.ioarchmagedirect
crates.ioarchmage0.9.28direct
crates.iobytemuckdirect
crates.iobytemuck1.25.2direct
crates.ioenoughdirect
crates.ioenough0.4.4direct
crates.iohalfdirect
crates.iohalf2.7.1direct
crates.ioimgref1.12.3direct
crates.iolinear-srgbdirect
crates.iolinear-srgb0.6.12direct
crates.iomagetypesdirect
crates.iomagetypes0.9.28direct
crates.iomoxcms0.8.1direct
crates.iorgb0.8.53direct
crates.iothiserrordirect
crates.iothiserror2.0.18direct
crates.iothiserror2.0.20direct
crates.ioultrahdr-core0.5.0direct
crates.iowhereatdirect
crates.iowhereat0.1.5direct
crates.iozencodecdirect
crates.iozencodec0.1.26direct
crates.iozenpixels0.2.16direct
crates.iozenpixels-convertdirect
crates.iozenpixels-convert0.2.16direct
crates.iozentonedirect
crates.iozentone0.1.0direct
crates.iozenutils-apidoc0.1.1direct
crates.ioaligned-vec0.6.4indirect
crates.ioalmost-enough0.4.4indirect
crates.ioarbitrary1.4.2indirect
crates.ioarchmage-macros0.9.28indirect
crates.ioautocfg1.5.1indirect
crates.iobytemuck_derive1.10.2indirect
crates.iocc1.2.64indirect
crates.iocfg-if1.0.4indirect
crates.iocodec-corpusindirect
crates.ioconsole0.15.11indirect
crates.ioconsole_error_panic_hookindirect
crates.iocriterionindirect
crates.iocrunchy0.2.4indirect
crates.ioencode_unicode1.0.0indirect
crates.ioequator0.4.2indirect
crates.ioequator-macro0.4.2indirect
crates.iofind-msvc-tools0.1.9indirect
crates.iogarb0.2.8indirect
crates.iogetrandomindirect
crates.iogetrandom0.3.4indirect
crates.iohashbag0.1.13indirect
crates.ioitoa1.0.18indirect
crates.iojobserver0.1.34indirect
crates.iolibc0.2.186indirect
crates.iolibfuzzer-sys0.4.13indirect
crates.iolibm0.2.16indirect
crates.iomemchr2.8.2indirect
crates.ionum-traits0.2.19indirect
crates.ioonce_cell1.21.4indirect
crates.iopaste1.0.15indirect
crates.ioproc-macro21.0.106indirect
crates.ioproptestindirect
crates.iopublic-api0.52.1indirect
crates.iopxfm0.1.29indirect
crates.ioquote1.0.45indirect
crates.ior-efi5.3.0indirect
crates.iorustdoc-types0.57.3indirect
crates.iorustup-toolchain0.1.10indirect
crates.iorustversion1.0.22indirect
crates.iosafe_arch1.0.0indirect
crates.iosafe_unaligned_simd0.2.5indirect
crates.ioserde1.0.228indirect
crates.ioserde_core1.0.228indirect
crates.ioserde_derive1.0.228indirect
crates.ioserde_json1.0.150indirect
crates.ioshlex2.0.1indirect
crates.iosimilar2.7.0indirect
crates.iosimilar-asserts1.7.0indirect
crates.iosnapshot-testing0.1.8indirect
crates.iosyn2.0.117indirect
crates.iosyn3.0.4indirect
crates.iotempfileindirect
crates.iothiserror-impl2.0.18indirect
crates.iothiserror-impl2.0.20indirect
crates.iotinyvec1.11.0indirect
crates.iotinyvec_macros0.1.1indirect
crates.iounicode-ident1.0.24indirect
crates.iowasip21.0.4+wasi-0.2.12indirect
crates.iowasm-bindgenindirect
crates.iowasm-bindgen-testindirect
crates.iowhichindirect
crates.iowide1.5.0indirect
crates.iowinarm-cpufeatures0.1.2indirect
crates.iowindows-sys0.59.0indirect
crates.iowindows-targets0.52.6indirect
crates.iowindows_aarch64_gnullvm0.52.6indirect
crates.iowindows_aarch64_msvc0.52.6indirect
crates.iowindows_i686_gnu0.52.6indirect
crates.iowindows_i686_gnullvm0.52.6indirect
crates.iowindows_i686_msvc0.52.6indirect
crates.iowindows_x86_64_gnu0.52.6indirect
crates.iowindows_x86_64_gnullvm0.52.6indirect
crates.iowindows_x86_64_msvc0.52.6indirect
crates.iowit-bindgen0.57.1indirect
crates.iozenanalyze0.2.0indirect
crates.iozenutils-fuzzindirect
crates.iozerocopy0.8.52indirect
crates.iozerocopy-derive0.8.52indirect
crates.iozmij1.0.21indirect
crates.iozune-coreindirect
crates.iozune-imageindirect
crates.iozune-jpegindirect
Dependency advisories 1

This repository publishes no package the index resolves, so its own dependency graph was assessed — 87 packages, which also include development and test pins that never ship: 1 carry known advisories, of which 0 are direct. 24 could not be assessed — no resolved version, an unsupported ecosystem, or beyond the reported package list.

PackageVersionRelationSeverityAdvisoriesFixed in
paste1.0.15indirectunknown1

An advisory means the version recorded in the dependency graph falls inside an advisory’s affected range. Reachability is not analysed, and the graph includes development and test pins — a finding may concern tooling rather than shipped software.

Raw JSON report machine-readable

Feedback

Spotted something off in this report, or have thoughts to share? Wrong measurements, missed tooling, ideas, questions — anything is welcome. Every message is read and gets a response.

The message is kept through sign-in.

Scores are signals, not warranties. They reflect publicly visible practices on GitHub — not a code audit, and not a security guarantee.

Missing data is excluded and weights renormalized, never scored as zero. Methodology is versioned and open: metrics v2.10.0, schema v0.34.0 — full methodology · metrics wiki.

How one result sits in the wider record: aggregate statisticscrates.io.