Using Photoshop's Blur Gallery – Tilt-Shift filter to hide quality weaknesses (low resolution, messy detail) in an AI-generated background, by exploiting the fact that a background is often already meant to be out of focus behind a subject.
Rather than fighting a Generative Fill limitation (whole-background generation is currently low quality) head-on, this leans into an existing property of the source photo — it was already slightly out of focus — turning one limitation into cover for another instead of trying to eliminate it. Part of the broader Generative Fill Background Compositing Workflow.
Generative Fill Background Compositing Workflow, Camera Raw Grain to Unify AI Composite Texture