Face filter
You can use face filter to search for faces in history events by providing a single face reference image. You must enter a threshold for the expected facial similarity before searching. Only events with faces with a matching score above the threshold will appear in the results list.
There are three ways how to provide a face reference image to search engine:
by drag and drop - you can drag an image file from the file system or form detected faces from events history list page
by choosing a file - you can use the file selector to select an image file from the file system
by taking a photo - you can take photo using the device built-in camera or a USB camera connected to your computer
The following file formats are supported: *.bmp, *.dib, *.jpeg, *.jpg, *.jpe, *.jp2 , *.png, *.webp, *.pbm, *.pgm, *.ppm *.pxm, *.pnm, *.sr, *.ras , *.sr, *.ras , *.exr, *.hdr, *.pic, Raster and Vector geospatial data supported by GDAL
Empty face filter
Filtering process
Provide an image to search engine (drag&drop, choosing a file or by taking a photo)
System detects the face in the provided image
If the face was successfully detected, you can set facial similarity threshold (from
30
to100
)Hit SEARCH button to see the results
Successfully detected face in the provided image
Warning when the system can not detect a face in the provided image
51
to 100
. In this case, the default value is 95
.After a successful search, you can see all matched faces with reference image with score higher than the selected threshold in the History events list:
History events list - filtered results with additional column FACE FILTER SCORE
Taking a photo
Face filter with “taking photo“ disabled (left) and face filter with “taking photo“ enabled (right)
Camera component to take a photo
If your device supports more built-in cameras, you can switch between them by clicking the face icon in the upper right corner.