There are certain requirements for
to detect and blend faces in your photos.
- Faces shouldn't be blurred. The facial features should appear accentuated in the photos.
- The faces in each photo must be 100 x 100 pixels or larger in size.
- For best results, use close-up shots that have similar skin tone.
- Avoid using facial shots that have glasses or are covered by hair, a hat, or any other item.
Also, photos of subjects looking towards the camera give the best results.