Miguel Angel Simon Sierra 596d822117 fix(cli): report the level-shift bias and correct the compare --against floor ...

The documented caveat was wrong. Probing which reference frame the live
seek lands on shows it lands exactly on the right one (peak SSIM at frame
210 for t=7, falling off on both sides), so there is no seek drift to
work around.

The real floor is the decode gap: a replica is a live browser paint, a
reference is a decoded compressed video. Flat graphics self-compare at
0.998-0.999; photographic video sits near 0.93 at high quality and 0.89
at draft, and most of that is a uniform level shift rather than a
structural error.

Adds meanSignedDiff so that shift is a number instead of an eyeball call
on the overlay, printed as 'diff X% (bias +Y%)', and replaces the caveat
with the measured per-content floors.

2026-08-07 18:49:10 -07:00

..

references

fix(cli): report the level-shift bias and correct the compare --against floor

2026-08-07 18:49:10 -07:00

SKILL.md

feat(cli): measure a composition against a reference with compare --against

2026-08-07 18:33:55 -07:00