What Is a Pick Flag?
Reviewed 2026-09-09 · by the Cull AI Studio team
A pick flag is a marker used in photo culling and photo management software to mark an image as a selected favorite or keeper during a review pass, distinct from a star rating or a color label. It is typically a simple picked, rejected, or unflagged state used for a fast first pass, before finer-grained ratings get added later. Exactly what a flag means, and how it is stored, varies by software.
The general term
A pick flag is a marker used in photo management and culling software to mark an image as a selected favorite or keeper during review. Most tools separate flags from star ratings and color labels: a flag is typically a simple picked, rejected, or unflagged state used for a fast first pass, while stars and labels carry finer-grained information added later, like a 1-to-5 quality rating or a color-coded category.
How pick flags fit into a cull
Photographers commonly use pick flags as the quick, low-friction first decision on a shoot: flag the frames worth a second look, and leave the rest unflagged or explicitly rejected. Once the flagged set is smaller, a second pass adds star ratings or color labels to rank the keepers further. Filtering a catalog down to just the picked flag turns a full card into a manageable shortlist.
How this maps to Cull AI Studio
Cull AI Studio does not have a separate "pick flag" feature of its own. Its core sorting concept is the three-way KEEP, REJECT, or REVIEW decision made on every frame during a scan. What gets written out afterward, as an XMP sidecar next to each file, is the vocabulary your editing software already understands: keepers get five stars and a green label, rejects get one star and red, and review frames get a yellow flag. Those star, label, and flag values are what Lightroom's own pick-flag and rating system reads on import, not a proprietary flag Cull AI Studio invents on its own.
Why the distinction matters
It is easy to assume "pick flag" describes a feature every culling tool must implement identically, but the underlying model differs by tool. Cull AI Studio's decision is three-way, KEEP, REJECT, or REVIEW, made once on your own computer, with a confidence score attached. The star and flag values are simply how that decision gets expressed in a format Lightroom already speaks.
Limitations
Because pick-flag conventions are not standardized across every tool, a flag value exported from one program does not always mean the same thing when read by another. Confirm what a flag or rating represents before trusting a filter built on it, especially the first time you pair a new culling tool with your existing catalog.
Frequently asked questions
What is a pick flag in photo culling software?
A marker used to mark a photo as a selected favorite or keeper during review, typically separate from star ratings and color labels.
Does Cull AI Studio have its own pick flag feature?
Not as a separate feature. Its core sorting concept is a three-way KEEP, REJECT, or REVIEW decision made on every frame; star, label, and flag values are what get written to XMP sidecars afterward.
How do Cull AI Studio's decisions appear as flags when opened in Lightroom?
Keepers get five stars and a green label, rejects get one star and red, and review frames get a yellow flag, written into XMP sidecars that Lightroom reads on import.
Is a pick flag the same as a star rating?
No. A pick flag is typically a simple picked, rejected, or unflagged state, while a star rating adds finer-grained ranking on top of that decision.
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