Table of Contents        30. Auto Keywords


30.5 Image Analysis

If your Mac runs macOS 10.15, or macOS 11 and newer, you can ask NeoFinder 8 to perform some powerful image analysis operations on all thumbnails of a catalog.

Use the context menu for a catalog, and select the new command "Analyse thumbnails"


analyze thumbnails


NeoFinder will then show you this dialog, asking you for the options you need:

image analysis dialog



At this time, you can have NeoFinder perform three different operations here.

Find Faces
This checks the thumbnails for human faces contained in them. This will massively accelerate the
Find Faces procedure.


Generate AutoTags
This will use the built-in macOS coreML image detection engine, and create AutoTags for these items. These AutoTags are stored in a separate field in the catalog, allowing you to super quickly
search your data for similar items based on their AutoTags, and also massively accelerates Finding files based on their AutoTags!


Find text (OCR)
This will check for text contained in the thumbnail, and place it as plain text in the Contents section of the NeoFinder catalog. This allows you to quickly Find text in images!

In this example, the found text was incredibly accurate:

ocr image


With the result:

OCR result




NeoFinder will then check which items in the catalog have a thumbnail, and starts processing them, but it does so in the background, so you can keep working with NeoFinder!


image analysis progress



By default, NeoFinder will check if a thumbnail in a catalog already contains these values, and in that case ignore that thumbnail. But you can have NeoFinder force to run the image analysis for all items on that catalog again, and overwrite any existing values in the catalog.



Notes

This also works for single files with thumbnails inside a catalog.

The results will be better for larger thumbnails. If you only use up to 640 px in your catalogs, it may not be very accurate.

As all three tools use machine learning for their work, the results will not be perfect, but especially the OCR code in macOS 10.15 is surprisingly good and helps finding images in a large database a lot.

If this process takes too much time, simply stop it, and repeat it on the same catalog later. By default, NeoFinder will only check thumbnails of the catalog that don't contain this extra data yet.






More

30.1 AutoTag Inspector
30.2 Find AutoTags in a Catalog
30.3 Download AutoTags Engines
30.4 AutoTags Engine API