- Add --alpha flag to generate PNG sequences with transparency
- Implement extract_column_strip_alpha() and extract_row_strip_alpha() functions
- Create BGRA PNG frames with transparent backgrounds instead of black padding
- Perfect for video editing workflows - no keyframe compression
- Each PNG shows progressive scan line accumulation with alpha channel
- Row mode properly rotated CCW 90° to match image mode orientation
- Add horizontal flipping to all modes so time flows right to left (strip photography convention)
- Progressive content grows from right to left in video frames
- Compatible with all major video editors (Premiere, Final Cut, DaVinci Resolve)
- Auto-generates organized output directories for PNG sequences
- Add comprehensive documentation for alpha video mode
- Tested successfully with PNG sequence generation
- Ideal for professional compositing and video editing workflows
- Remove incorrect padding that was causing massive file sizes
- Fix progressive accumulation to show proper scan line build-up over time
- Each frame now shows accumulated scan lines up to that point with proper padding
- Video dimensions correctly set to final size with black padding for progressive frames
- Tested successfully: 101 frames at 101x2456 resolution = 1.1MB file size
- Duration now correctly matches frame count / fps (3.37 seconds for 101 frames at 30fps)
- Add --timestamp / --ts flag to embed frame count on bottom left corner
- Implement add_timestamp_overlay() function with large, visible text
- Yellow text on black background for good visibility
- Shows 'Frame: X/Y' format with current and total frame counts
- Works with both column and row video modes
- Applied after rotation for proper positioning
- Update documentation with timestamp examples and parameter descriptions
- Tested successfully with sample video files
- 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
