- Add --video flag to generate MJPEG AVI files showing scan line accumulation over time
- Add --fps parameter to control output video frame rate (default: 30.0)
- Implement extract_column_strip_video() and extract_row_strip_video() functions
- Each video frame shows progressive build-up of strip photography effect
- Video dimensions automatically calculated based on input video and scan line count
- Row mode videos rotated CCW 90° to match image mode orientation
- Add validation for video mode arguments and proper file extensions
- Update documentation with video mode examples and features
- Tested successfully with sample video files
- Add --timeline flag to overlay frame numbers as ruler at bottom
- Add --start and --end parameters to process video segments
- Timeline shows evenly-spaced frame numbers with tick marks
- Timeline always horizontal from left to right at bottom
- Segment processing maintains actual frame numbers in timeline
- Update all extraction and analysis functions to support segments
- Add --relax option to include N frames before/after threshold frames
- Implement two-pass approach for relax feature
- Generate PowerShell command in debug mode to test all suggested thresholds
- Place debug mode outputs in results/debug folder by default
