HUGGINGFACE_README.md

metadata

title: Pt/Pd Calibration Studio
emoji: 📷
colorFrom: yellow
colorTo: gray
sdk: gradio
sdk_version: 4.44.0
app_file: app.py
pinned: false
license: mit
tags:
  - photography
  - calibration
  - platinum
  - palladium
  - alternative-process
  - digital-negative
  - curve-editor
short_description: AI-powered calibration for platinum/palladium printing

Platinum/Palladium Calibration Studio

An AI-powered calibration system for platinum/palladium alternative photographic printing.

Features

Core Calibration

• Step Tablet Reading: Automated detection and density extraction from scanned step tablets
• Curve Generation: Create linearization curves for digital negatives
• Multi-Format Export: Export to QuadTone RIP, Piezography, CSV, and JSON

Image Processing

• Image Preview: Preview curve effects on images before processing
• Digital Negative Creation: Create inverted negatives with curves applied
• Histogram Analysis: Zone-based tonal distribution analysis

Printing Tools

• Chemistry Calculator: Calculate coating solutions based on Bostick-Sullivan formulas
• Exposure Calculator: UV exposure calculations with test strip generator
• Zone System: Ansel Adams zone analysis with development recommendations
• Soft Proofing: Preview prints on different paper types

AI Assistance

• Natural Language Chat: Ask questions about Pt/Pd printing
• Recipe Suggestions: Get customized coating recipes
• Troubleshooting: Diagnose common problems with AI guidance

Usage

1. Upload a step tablet scan in the "Step Tablet" tab
2. Generate curves using the automatic or manual curve editor
3. Preview effects on your images in the "Image Preview" tab
4. Export curves in your preferred format
5. Calculate chemistry and exposure settings for your prints

Tabs Overview

Tab	Description
Step Tablet	Read and analyze step tablet scans
Curve Editor	Create and edit linearization curves
AI Enhance	Improve curves with AI suggestions
Step Wedge Analysis	Comprehensive step wedge quality analysis
Curve Visualizer	View curve statistics and comparisons
Curve Manager	Save, load, and export curves
Scanner Calibration	Calibrate your scanner for accurate readings
Chemistry Calculator	Calculate coating solution recipes
Settings	Configure API keys and preferences
Image Preview	Preview curve effects on images
Digital Negative	Create print-ready digital negatives
Batch Processing	Process multiple images at once
Histogram Analysis	Zone-based image analysis
Exposure Calculator	Calculate UV exposure times
Zone System	Ansel Adams zone mapping
Soft Proofing	Preview prints on different papers
Paper Profiles	Browse paper characteristics
Auto-Linearization	Automatic curve generation
Print Session Log	Track your prints over time
AI Assistant	Chat about Pt/Pd printing
About	Information and help

Requirements

• A step tablet scan (Stouffer 21/31/41 step or similar)
• Images to process (TIFF recommended)
• Optional: API key for AI features

Links

• GitHub Repository
• Documentation
• Issues

License

MIT License - see LICENSE for details.