Lightroom Classic lets you quickly organize and find images using facial recognition technology. Lightroom Classic scans your image catalog to find potential faces for your review and confirmation.
In the Library module, switch to the People view. To do so, select View > People or press O. Alternatively, you can click the icon on the toolbar.
Lightroom Classic prompts you to find faces in your catalog. Click one of the following options:
Start Finding Faces In Entire Catalog
Enables background face indexing. Lightroom Classic detects faces in all photos in your catalog. Depending upon the size of your catalog, full indexing may take a while.
Only Find Faces As-Needed
Leaves background face indexing disabled. Detects faces only in folders and collections that you select.
If you chose to find faces in the entire catalog, wait for indexing to complete. You can continue to work as Lightroom Classic indexes your images. Lightroom Classic uses imaging characteristics to find faces, and then stacks images of similar faces together.
Once the initial indexing is complete, face indexing continues to run in the background. Faces in any images added later to the catalog are automatically detected.
To tag an identified stack, simply type a name beneath it in the Unnamed People area. All photos in the stack are automatically tagged with that name.
As you tag stacks and images, Lightroom Classic moves them from the Unnamed People area in the People view to the Named People area.
Lightroom Classic automatically adds these names to your keyword list as People keywords.
Instead of working with a stack as a whole, you can tag one or more images. Do the following:
If you notice some images in the Unnamed People area that are not part of any stack, you can use these approaches to tag them.
Once the Named People area has some tagged images, Lightroom Classic identifies similar images and prompts you to confirm the suggested names.
You can also tag images in the Loupe view.
If a face is not easily discernible in an image, Lightroom Classic may not be able to detect it. You can draw face regions manually in such cases.
You can disable face indexing in Catalog Settings. Do the following:
Introduced in Lightroom Classic CC 7.3 (April 2018 release)
Lightroom Classic CC 7.3 (April 2018 release) has been optimized for more accurate detection of faces in your catalog photos.
If you've previously run face-detection manually on your photos, perform the steps recommended below to upgrade the existing face records in your catalog to the new face engine. You can perform these steps at any time after updating to Lightroom Classic CC 7.3. If you don't perform the recommended steps, the existing face records are upgraded as-needed for displaying in the People view.
The steps listed below are not required if you have enabled the Automatically Detect All Faces In All Photos option in Catalog Settings. In this case, Lightroom Classic automatically upgrades the existing face records in the background.
In Library module, select All Photographs in the Catalog panel.
Select all photos in the Grid view or the Filmstrip. To select all photos, choose Edit > Select All or press Ctrl+A (Windows) or Command+A (macOS).
From the menu bar, choose Library > Find Faces Again.
In the Find Faces Again dialog, ensure that the following options are selected.
Lightroom Classic now re-runs face detection to upgrade the existing face records but excludes photos that have never had face detection run before. Any photos that have at least one confirmed face or at least one manually drawn face region are also excluded to preserve your previous edits; the unconfirmed faces is those photos remain unconfirmed.