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Victor Kuznetsov
c1971a3e8d
For AI-enhanced composites (digitalSourceType compositeWithTrainedAlgorithmicMedia, identify ai_source_kind == "enhanced"; roadmap P1#8): regenerate ONLY the AI region and preserve the real photo elsewhere, instead of regenerating the whole frame. - noai.tiling.feather_region_composite(base, regenerated, box, *, feather): pure, model-free compositor that blends the regenerated AI box back over the original with a feathered seam, leaving pixels OUTSIDE the box exactly equal to base. Fully unit-tested (outside-box exactness, interior == regenerated, hard paste at feather 0, monotonic seam ramp, dtype/grayscale/clamp/empty-box/shape-mismatch). - WatermarkRemover.remove_watermark(region=, region_feather=) and the module-level convenience function thread it through: the remover regenerates (or tiles) the frame, then composites only the AI box back over the original input. The box is caller-supplied -- a C2PA composite manifest carries no reliable machine-readable region, so none is fabricated. The no-model lossless region path stays region_eraser.erase. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>