d2l-ai/d2l-zh vs wzmiaomiao/deep-learning-for-image-processing
Both showing Mixed signals — pick on fit, not health
As of June 2026, d2l-zh and deep-learning-for-image-processing both show mixed maintenance signals. d2l-zh last saw a commit 1 year ago with 17+ active contributors, while deep-learning-for-image-processing last saw a commit 5 months ago with 2+ active contributors. d2l-zh is Apache-2.0-licensed while deep-learning-for-image-processing is GPL-3.0-licensed. Neither has known critical or high-severity CVEs in its dependency tree.
Informational only. RepoPilot summarises public signals at the time of analysis. Not professional, security, or legal advice.
d2l-ai/d2l-zh →
Stale — last commit 2y ago
last commit was 2y ago; no tests detected
Has a license, tests, and CI — clean foundation to fork and modify.
Documented and popular — useful reference codebase to read through.
No critical CVEs, sane security posture — runnable as-is.
- ⚠Stale — last commit 2y ago
- ⚠Concentrated ownership — top contributor handles 61% of recent commits
- ⚠No test directory detected
- ✓17 active contributors
- ✓Apache-2.0 licensed
- ✓CI configured
What would improve this?
- →Use as dependency Mixed → Healthy if: 1 commit in the last 365 days
Maintenance signals: commit recency, contributor breadth, bus factor, license, CI, tests
wzmiaomiao/deep-learning-for-image-processing →
Slowing — last commit 4mo ago
copyleft license (GPL-3.0) — review compatibility; no CI workflows detected
Has a license, tests, and CI — clean foundation to fork and modify.
Documented and popular — useful reference codebase to read through.
No critical CVEs, sane security posture — runnable as-is.
- ⚠Slowing — last commit 4mo ago
- ⚠Small team — 2 contributors active in recent commits
- ⚠Single-maintainer risk — top contributor 88% of recent commits
- ⚠GPL-3.0 is copyleft — check downstream compatibility
- ⚠No CI workflows detected
- ✓Last commit 4mo ago
- ✓2 active contributors
- ✓GPL-3.0 licensed
- ✓Tests present
What would improve this?
- →Use as dependency Concerns → Mixed if: relicense under MIT/Apache-2.0 (rare for established libs)
Maintenance signals: commit recency, contributor breadth, bus factor, license, CI, tests
Signal-by-signal breakdown
| d2l-zh | deep-learning-for-image-processing | |
|---|---|---|
| Stars | 77,727 | 26,228 |
| Last commit | 1y ago | 5mo ago |
| License | Apache-2.0 | GPL-3.0 |
| Open issues | 126 | 102 |
| Has tests | — | ✓ |
| Has CI | ✓ | — |
| Test coverage | 0% | 23% |
| Dependency CVEs | No CVEs | No CVEs |
| Architecture grade | — | — |
| Cycles | — | — |
| Bottom-line | Mixed signals | Mixed signals |
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