AutoCollage face detection helps select images for Collages. When AutoCollage detects a face in an image, it makes a note of the face size and location.
Face detection is an active research area. The face detector used in AutoCollage is good, but not perfect. In some cases you may wish to preview detected faces, and to change the results.
Once face detection display options have been enabled via the Input Options dialog, detected faces are shown in each image in the Image Preview Pane, surrounded by a yellow rectangle.
AutoCollage prefers images with faces when selecting pictures for inclusion in collages. It also prefers not to obscure detected faces in collages. Note that the yellow rectangle is only shown in the image preview pane, not in the final collage.
If Enable manual face detection is enabled in Input Options, you can force AutoCollage to ignore automatically detected faces in a given image. You can also draw a rectangle containing any faces in the image, replacing automatic face detection results.
To instruct AutoCollage to ignore faces detected in an image:
To draw a manual face detection rectangle:
In the image below, the user identifies the dragon's face by holding down the Ctrl key and left-clicking at the upper left of the dragon's face, releasing the Ctrl key, dragging the mouse to the lower right corner of the dragon's face, and then releasing the left mouse button.
If you create a collage and find features you want shown are being obscured, return to the image browser view of the folder and use manual face detection to make this less likely.
Manual face detection is an advanced feature, and has several restrictions.
See also: Setting AutoCollage Input Options, AutoCollage Tips and Tricks