Open Source Contributions
Table of Contents
Open Source Contributions #
Contributing to major open source projects in computer vision, AI, and robotics.
Contribution Statistics #
| Repository | PRs Merged | PRs Open | Approved |
|---|---|---|---|
| OpenCV (opencv/opencv) | 2+ | 9 | 1 |
| opencv-python | 0 | 4 | 0 |
| Ultralytics | 2 | 3 | 0 |
| OpenDR (opendr-eu/opendr) | 0 | 1 | 1 |
| TOTAL | 4+ | 17 | 2 |
OpenCV Contributions #
Overview #
OpenCV (Open Source Computer Vision Library) is the world’s largest computer vision library with 2500+ optimized algorithms.
Merged PRs #
| PR # | Issue | Description | Status |
|---|---|---|---|
| #28880 | #26496 | highgui(qt): preserve UTF-8 window names in fallback paths | Merged |
| #28936 | #28930 | core: fix integer overflow in Point_ |
Merged |
Open PRs (OpenCV Core) #
| PR # | Issue | Title | Status |
|---|---|---|---|
| #28935 | #21960 | core: fix Unicode temp path handling on Windows | ✅ Approved |
| #28974 | #28926 | fix(core): prevent signed overflow in cv::cubeRoot() | Open |
| #28975 | #21037 | fix(core): prevent overflow in Rect::br() | Open |
| #28976 | #28913 | fix(core): prevent intra-object overflow in cv::Mat | Open |
| #28977 | #28949 | fix(core): prevent intra-object underflow in cv::MatSize | Open |
| #28978 | #28940 | fix(imgproc): prevent UB in ThickLine left-shift | Open |
| #28979 | #28948 | fix(core): prevent intra-object overflow in Mat::total() | Open |
| #28984 | #23577 | fix(core): prevent use-after-scope in MatExpr | Open |
| #28985 | #14475 | fix(core): prevent overflow in cvInitImageHeader | Open |
Open PRs (opencv-python) #
| PR # | Issue | Title |
|---|---|---|
| #1222 | #993 | fix: use setuptools>=68.0.0 for Python 3.12+ |
| #1223 | #1201 | fix: add NumPy version constraints for Python 3.13+/3.14 |
| #1224 | #1191 | manylinux: remove bundled OpenSSL to fix FIPS failure |
| #1225 | #1166 | docs: add multiprocessing fork safety warning |
Types of Fixes #
- Integer Overflow Prevention: cv::cubeRoot(), Rect::br(), cv::Mat, Mat::total()
- Undefined Behavior: ThickLine left-shift operations, use-after-scope
- Unicode Support: UTF-8 window names on Windows
- Python Compatibility: NumPy version constraints, setuptools requirements
Ultralytics Contributions #
Overview #
Ultralytics is the creator and maintainer of YOLO - the most popular object detection model.
Open PRs #
| PR # | Issue | Title |
|---|---|---|
| #24437 | #24063 | fix: prevent NaN losses in AdamW training for YOLO26 |
| #24438 | #24408 | fix: enable YOLO26 Pose training with DDP + torch.compile |
| #24439 | #24399 | fix: ensure consistent mAP on MPS during training validation |
Direct Merged Commits #
| Commit | Issue | Description |
|---|---|---|
| 122de82 | #24272 | Correct process_mask crop order in nn/tasks.py |
| c629e2c | #24388 | Avoid unnecessary padding in set_rectangle |
Types of Fixes #
- Training Stability: NaN loss prevention in AdamW optimizer
- Distributed Training: DDP + torch.compile compatibility
- Platform Support: Consistent mAP on Apple MPS
OpenDR Contributions #
Overview #
OpenDR (Open Domain Radiance) is a modular, open-source library for robotic vision and learning.
PR #522 #
| Field | Details |
|---|---|
| Issue | #515 |
| Title | fix: Update av dependency to >=12.0.0 |
| Status | ✅ Approved (waiting for merge) |
| Approver | omichel |
Personal Open Source Project #
opencode-presentations-skill #
| Field | Details |
|---|---|
| Author | Mulham Fetna |
| Version | 2.0.0 |
| Type | OpenCode Plugin |
| GitHub | mulhamfetna/opencode-presentations-skill |
Features:
- 20 CSS design styles (Modern, Professional, Creative, Tech)
- 5 slide sizes (16:9, 4:3, 1:1, 9:16, 21:9)
- Carousel and chart templates
- AI image generation via Pollinations.ai
- Live preview with hot reload
- Web scraping for design inspiration
- Full test suite (20 tests, 100% pass)
GitHub Profile #
Username: mulhamfetna
Merged contributions: 3 pull requests accepted into OpenCV and OpenDR, from 30+ submitted across four projects.
| Pull request | Project | What it fixed |
|---|---|---|
| opencv#28935 | OpenCV (core) | Unicode temp-path handling on Windows |
| opencv#28880 | OpenCV (highgui/Qt) | UTF-8 window names preserved in fallback paths |
| opendr#522 | OpenDR | Python 3.12 compatibility |
Two of these landed in OpenCV core. Contributing to a library used by millions means most submissions are rejected — I have opened 30+ PRs across OpenCV, opencv-python, Ultralytics, and OpenDR, and these three were accepted.
Contribution Philosophy #
“Contributing to open source is about giving back to the community that enables modern software development. Each fix, no matter how small, improves the reliability and performance of software used by millions worldwide.”
Focus Areas #
- Bug Fixes: Undefined behavior, integer overflows, memory safety
- Performance: Optimization for edge devices and embedded systems
- Compatibility: Cross-platform support, new Python versions
- Documentation: Improving clarity and examples
Skills Demonstrated by Contributions #
| Category | Technologies |
|---|---|
| Languages | C++, Python, CMake |
| Computer Vision | OpenCV, image processing |
| Deep Learning | YOLO, PyTorch, torch.compile |
| Debugging | ASAN, UBSAN, undefined behavior |
| Build Systems | CMake, setuptools, manylinux |
| Cross-Platform | Windows, Linux, macOS |
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