A 7-frame bracket of 67 MP raws ran out of memory: the merge decoded the frames four at a time, and the AHD demosaic
collected every tile before copying them into a second full-size picture. Full-size frames now decode one after the
other (the demosaic is parallel inside; previews stay parallel), and AHD fills the picture by rows of tiles. Peak memory
of 67 MP HDR merges: 3 frames 4.8 → 3.8 GB, 4 frames 6.3 → 4.7 GB, about the same time; AHD output is pixel-identical.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
