Pu-erh Lab
Cross-Platform RAW Editor & Digital Asset Manager
Now supports Windows/CUDA and Apple Silicon
Key Features
Windows/CUDA & macOS/Metal Dual-Platform GPU Backend
Delivers 2K 300 FPS preview and 6K 60FPS rendering on modern GPUs while maintaining low memory footprint.
HDR Workflow & Modern Color Management
Supports HDR image editing on macOS and exporting Ultra HDR format JPEG files.
ACES 2.0 & OpenDRT
Supports ACES 2.0 and OpenDRT with one-click switching of 'color science'.
LUT Support
Supports .cube LUTs for creative color grading.
Responsive Library Workflow
Thumbnail waiting animations, faster high-resolution loading, folder browsing, filters, and in-project deletion make managing large collections smoother.
Versioned Editing
Reset adjustments for each image, branchable history, aspect-ratio selection, and the export queue form a complete non-destructive iteration path.
See It in Action
Library Browser
Folder tree, responsive thumbnail grid, filters, and live counts keep large projects readable at a glance.
Adjustment Workspace
White balance, HSL, CDL wheels, tone shaping, and histogram-driven controls stay close to the live preview.
LUT & History
Apply LUTs, compare looks, and keep a branchable edit history close at hand while iterating on color and tone.
Custom Color Science
Build a project around custom display transforms, rendering intent, and look development instead of being locked into a single default color pipeline.
Export Queue
Batch export with format, bit-depth, resize, and metadata options for finishing multiple images in one pass.
Roadmap
Recent milestones on main after v0.1.2, plus what is still ahead
v0.1.2 Shipped
- • OpenDRT support and rendering-transform selection UI
- • Project image deletion
- • Filter UI improvements
- • Core color-management fixes
Workflow Polish on main
- • Reset adjustments in the editor
- • Aspect-ratio selection
- • Waiting animation for thumbnails
- • Faster high-resolution camera loading
macOS / Metal Bring-up
- • macOS compile support
- • Initial Metal image processing
- • Metal RAW processing utilities
- • Metal resize and lens calibration
Metal Pipeline Integration
- • Metal integrated into the pipeline
- • Geometry pipeline fixes
- • Shader compilation cleanup
- • macOS packaging logic and follow-up fixes
Forward Path
- • Preset export
- • HDR workflow and output
- • Semantic search and AI-assisted tagging
- • Panorama integration
- • Continued parity between Windows/CUDA and macOS/Metal
Built With
A cross-platform stack built around dedicated Windows/CUDA and macOS/Metal paths
Platform
Core
Imaging
Color
Storage
Lens & Metadata
Performance
Get Started
Build the current Windows/CUDA or macOS/Metal tracks from source
Contribute
Pu-erh Lab is an open-source project and contributions are welcome. Open issues, submit pull requests, or share your ideas.