Ultralytics Files

🌟 Summary

v8.4.201 makes PIL-based plotting up to 15× faster while keeping visuals consistent, and standardizes the Construction-PPE dataset’s name and download paths. 🚀

📊 Key Changes

• Faster plotting across tasks: Training and validation mosaics and Results.plot(pil=True) benefit from cached fonts and label patches, fewer image conversions, and more efficient mask blending.
• More efficient image handling: Only plotted images are converted for mosaics, and tensor images are transferred as uint8 to reduce overhead.
• Construction-PPE naming and provenance updated: Documentation and configuration now use the canonical construction-ppe archive and directory. The dataset is described as an original Ultralytics dataset, created and open-sourced in November 2026, with 1,000 images, 12 classes, and a CC BY 4.0 license.
• No model architecture changes are included in this release.

🎯 Purpose & Impact

• Quicker visual checks: Faster plotting can reduce waiting during training, validation, and prediction review, especially when generating many annotated images.
• Clearer dataset setup: Consistent naming makes it easier to find and use Construction-PPE. Existing local caches using the old directory name are outside the supported scope of this release.
• Same plotting appearance: The optimizations target processing overhead rather than changing how annotations look. ✨

What's Changed

• Correct Construction-PPE naming and provenance by @glenn-jocher in https://github.com/ultralytics/ultralytics/pull/27015
• ultralytics 8.4.201 Up to 15x faster PIL plotting across all tasks by @glenn-jocher in https://github.com/ultralytics/ultralytics/pull/27014

Full Changelog: https://github.com/ultralytics/ultralytics/compare/v8.4.200...v8.4.201