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ianshank/ptpd-calibration-studio

sourceHugging Facemitupdated 11mo agoView on Hugging Face
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App README

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

Tabs Overview

TabDescription
Step TabletRead and analyze step tablet scans
Curve EditorCreate and edit linearization curves
AI EnhanceImprove curves with AI suggestions
Step Wedge AnalysisComprehensive step wedge quality analysis
Curve VisualizerView curve statistics and comparisons
Curve ManagerSave, load, and export curves
Scanner CalibrationCalibrate your scanner for accurate readings
Chemistry CalculatorCalculate coating solution recipes
SettingsConfigure API keys and preferences
Image PreviewPreview curve effects on images
Digital NegativeCreate print-ready digital negatives
Batch ProcessingProcess multiple images at once
Histogram AnalysisZone-based image analysis
Exposure CalculatorCalculate UV exposure times
Zone SystemAnsel Adams zone mapping
Soft ProofingPreview prints on different papers
Paper ProfilesBrowse paper characteristics
Auto-LinearizationAutomatic curve generation
Print Session LogTrack your prints over time
AI AssistantChat about Pt/Pd printing
AboutInformation 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

License

MIT License - see LICENSE for details.