Edit drift is how far a human's edit moved a generated image away from the product it started with. When someone re-directs a shot, the change to the scene is expected, but the product itself should stay identical. Edit drift measures whether it did.
Why it matters
Editing a shot is meant to change the scene, the light, the framing. It is not meant to change the product, and yet a model asked to repaint a background can quietly alter the label or the shape too.
That kind of change is easy to miss. The new image looks better, the scene is what you asked for, and the drifted product slips through unnoticed.
Measuring the drift separates the two. The scene is free to move; the product identity is held to account on its own.
How Jinn treats it
Vermeer compares the edited image against the exact shot it was applied to and grades only the product: its label and wordmark, its packaging shape, its colorway and proportions. Scene, lighting, and crop are ignored on purpose.
The score warns, it does not block. A change past the threshold is flagged for a person to look at, and a score the model cannot produce confidently is dropped rather than raised as a false alarm.
Related terms
Terms without links are on the roster and get their pages as each definition ships.
Change the scene, not the product.
Edit drift flags an edit that quietly altered the product while leaving the scene free to move. See how Vermeer checks.