v0.0.11

Added

• Automatic rotation detection from frame edges and sprocket holes
  • Sprocket-based rotation (preferred): extracts angle from polynomial-fitted sprocket boundary slopes
  • Edge-based rotation (fallback): calculates angle from detected frame edge lines when ≥3 edges agree
  • CLI flags: --no-rotation, --no-sprocket-rotation, --max-rotation (default: 5°)
• Rotation settings in Lightroom plugin Crop tab
  • Auto-rotation checkbox (enabled by default)
  • Sprocket rotation checkbox (use sprocket holes for more reliable detection)
  • Max rotation field (0.5-15°)
• Keystone (perspective distortion) detection
  • Detects when film wasn't flat during scanning causing trapezoidal distortion
  • Combined detection using both methods for complete coverage:
    • Sprocket-based: measures convergence from sprocket boundary distances (one axis)
    • Edge-based: measures convergence from frame edge angles (both axes)
  • CLI flags:
    • --keystone outputs vertical and horizontal perspective correction values
    • --keystone-source selects detection method: combined (default), sprockets, or edges
  • Lightroom plugin:
    • Separate "Keystone Detection" section in Film tab
    • Source dropdown to select detection method
    • Results dialog shows relative adjustment values (add/subtract from current settings)
    • Values rounded to integers for Lightroom compatibility
  • Debug visualization shows both detection methods side-by-side

Fixed

• Outlier regions from film base variance detection (e.g., light leaks) are now masked out during edge detection instead of being added as false edge hints

v0.0.10

Added

• Adaptive tolerance based on film base color variance using IQR (interquartile range)
  • Tolerance automatically adjusts based on film base consistency
  • Configurable min/max range via --adaptive-min (default: 10) and --adaptive-max (default: 30)
  • Lower variance film bases get tighter tolerance for cleaner masks
• Gradient tolerance option (--gradient-tolerance)
  • Tolerance is 0 at image center and increases to max at edges
  • Helps prevent false matches in the frame area
• Adaptive tolerance controls in Filters > Film Base tab
  • Min/Max sliders for adaptive tolerance range
  • Gradient tolerance checkbox

Fixed

• Preview now resets crop before generating when "Reset crop" setting is enabled
• Plugin filter config values no longer overwritten by CLI defaults

v0.0.9

Added

• New --sprocket-type CLI option to control sprocket hole detection separately from film type:
  • none - skip sprocket detection (medium format, pre-cropped images)
  • bright - expect bright sprocket holes
  • dark - expect dark sprocket holes
  • auto - auto-detect (default)
• Plugin: New "Sprocket type" setting in Film tab

Fixed

• Plugin: Auto Crop button now correctly uses custom command path setting

v0.0.8

Changed

• Reorganized plugin settings dialog: new "Film" tab as first tab with film type and auto crop buttons, "Crop" tab now contains only crop-related settings
• Moved "Restore Defaults" button to bottom left of main dialog window
• Navigation buttons disabled when single photo selected

v0.0.7

Added

• JSON-based filter configuration via --filter-config CLI argument
• FilterConfig dataclasses for structured parameter management
• Configurable parameters for all edge detection filters:
  • Canny: low/high thresholds
  • Sobel/Scharr/Laplacian: blur size
  • DoG: sigma1/sigma2
  • LoG: sigma
• Configurable parameters for all separation methods:
  • All methods: tolerance
  • CLAHE: clip limit, tile size
  • Adaptive: block size
  • Gradient: gradient weight
• New "Filters" tab in Lightroom plugin dialog with:
  • Film Base and Edge Detection subtabs
  • Edge filter selection and parameter tuning
  • Separation method selection and parameter tuning
  • Reset buttons (↺) next to parameter labels to restore defaults
  • Single dynamic preview button that switches between "Preview Film Base" and "Preview Edges" based on selected subtab
• Preview backup flow with .bak rotation for preview temp directories
• --preview-mode CLI argument for minimal preview generation:
  • separation: generates only film base mask visualization
  • edges: generates only edge detection visualization

Fixed

• Renamed JSON.lua to JsonEncoder.lua to avoid Lightroom reserved name conflict

v0.0.6

Changed

• CLI now requires explicit detect subcommand for frame detection

v0.0.4

Fixed

• CLI no longer requires OpenCV for install/uninstall commands (lazy imports)

Added

• Auto-discovery of negative-auto-crop command from Homebrew locations
• Configurable command path in plugin Debug settings

v0.0.3

Changed

• Installation method changed to Homebrew distribution
• CLI tool and Lightroom plugin now installed separately
• Keyboard shortcuts managed via negative-auto-crop install/uninstall shortcuts

Removed

• Bundled Python environment in plugin (now uses system command)

Migration

If upgrading from a previous version, uninstall first:

negative-auto-crop uninstall

See homebrew-negative-auto-crop for installation instructions.

v0.0.2

Full Changelog: v0.0.1...v0.0.2

v0.0.1

Full Changelog: https://github.com/happyRip/Frame-Detection/commits/v0.0.1