Sometimes, for different reasons, the automatic face detection algorithm may fail to classify some faces which exist in the image, or falsely claim the existence of a face when it's not really there.
In such occurrences, there are several means which can help you to get more enhanced results:
- You can use our interactive tool to manually override the automatically detected coordinates, and correct the result. On the media-library, navigate to the relevant resource page and click the icon.
There, under "Face Coordinates" section, you can add & remove marked areas and save the changes so it will take effect the next time you initiate a face detection based transformation.
- Another option will be utilizing the Oxford - Advanced Facial Attributes Detection addon which in some cases presents better detection capabilities.
Note that this involves additional charges based on monthly usage.
- It's also possible to use g_auto with the relevant focal gravity to cener the image around faces. for example, using g_auto:face in your URLs will center the image while giving higher priority to the largest detected face. Another option would be to use g_auto:faces if there are several faces in the image
going forward we plan on providing more features as alternatives for such cases.