People photograph bookshelves for all sorts of reasons before they ever think of the pictures as data. Maybe the photos were taken before a move, while rearranging a room, to show a collection to a friend, or simply because a wall of books looked good.
If the spine text is readable, those photos can already be useful as a retrieval system. Shelf Scan's Library can import images from the phone's gallery and run its normal shelf-text recognition on them.
Start with the photos that are already good enough
Do not begin by deciding that the whole collection needs to be photographed again. Open the pictures you already have and ask a simpler question: can you read most of the spine text when you zoom in?
If yes, try them. A slightly crooked photo can still be useful. The important failures are different: tiny lettering, severe glare, motion blur, books too far away, or rows hidden behind other rows.
Import them from the Library
Open Shelf Scan's Library, tap the add button, and choose Import from gallery. Select the shelf images you want to add. Shelf Scan processes the image and saves it into the Library so its recognized text can be searched with the rest of your shelf photos.
This is especially useful if you already made a photographic record during a move or reorganization. The work has partly been done. The pictures only need to be brought into the place where the text becomes searchable.
Use descriptions only when they help you get back to the shelf
A description such as living room west wall, office tall case, or before move 2025 can give a search result physical context. It does not need to describe every book in the image.
The photograph already carries most of the information. The description is just the address.
Test a few obvious books
After importing, search for two or three authors or distinctive title words that are clearly visible in the photos. This is a faster quality check than staring at the OCR output.
If the expected books appear, the images are doing their job. If several obvious searches fail, those particular shelves may be worth photographing again at a closer distance or in better light.
Keep imperfect photos if they still answer questions
A shelf image does not need archival photographic quality to be useful. Even partial recognition can narrow a search from an entire house to one bookcase. The surrounding books also provide visual context after you open the matching image.
Delete or replace an imported photo when it is misleading, not merely because it is unattractive.
Imported and newly captured shelves can live together
There is no separate system for old pictures and new ones. Import the usable photos you already have, then use Shelf Scan's camera for shelves that were never photographed or for old images that are no longer representative.
The result can grow opportunistically. A searchable private-library record does not have to begin with a clean-slate documentation project.
The tool used in this workflow
Shelf Scan
Shelf Scan uses on-device OCR to search physical shelf text. Its Library can add shelves by capturing a new photo or importing an existing image from the Android gallery, then search recognized text across the saved images.