Add --symmetric flag for confidence-based horizontal symmetry enforcement#20
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marksverdhei wants to merge 1 commit into
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Add --symmetric flag for confidence-based horizontal symmetry enforcement#20marksverdhei wants to merge 1 commit into
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…ment Adds a new -s/--symmetric CLI flag that enforces horizontal symmetry on the output image using confidence-based consensus. This is useful for symmetric pixel art sprites that have minor asymmetries from AI upscaling artifacts. How it works: - Calculate confidence for each pixel based on saturation and distance from middle gray (128, 128, 128) - For each pair of horizontally mirrored pixels, if they differ, pick the higher-confidence pixel for both positions - Transparent pixels have zero confidence and defer to opaque pixels Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
enforce_symmetry()function to utils.py that enforces horizontal symmetry using confidence-based consensus-s/--symmetricCLI flag to enable symmetry enforcement during processingMotivation
AI-upscaled pixel art often has minor asymmetries from anti-aliasing artifacts. This feature allows users to automatically fix these by picking the "more confident" pixel from each mirror pair, where confidence is based on saturation and distance from middle gray.
How it works
For each pair of horizontally mirrored pixels that differ:
Test plan
🤖 Generated with Claude Code