Svenesis Blink Comparator

Version 1.2.3 – GPL-3.0-or-later

Animates frame sequences for visual inspection and data-driven frame selection. Comparable to PixInsight's Blink + SubframeSelector – but free and open source.

Features

• Animation of loaded sequences for rapid visual inspection
• Statistics table with FWHM, roundness, background, star count, and weight
• Scatter plots for 2D metric visualization
• Batch reject by threshold, worst N%, or approval expressions
• Difference mode to detect satellite trails and moving objects
• Side-by-side comparison with synchronized zoom and pan
• Filmstrip thumbnails with color-coded borders (green/red/blue)
• GIF export of included frames
• 500-level undo system
• CSV export of all statistics

Keyboard Shortcuts

• Space – Play/pause
• G – Mark frame as good
• B – Mark frame as bad
• D – Toggle difference mode
• Ctrl+Z – Undo

Workflow

Load sequence → run star detection → sort by FWHM → reject worst 10% → apply changes → stack.

Dependencies

numpy, PyQt6, matplotlib; optional: Pillow (GIF export)