Selectively brightening a face is a relatively simple editing technique that can add a glow to a person in a photo. The technique lets you lighten the face without lightening the entire photo and can be particularly effective when light comes from behind a subject.
The tools you need are available in many photo editing programs, especially those that support layers such as Photoshop.
To brighten a face, follow these steps:
1- Open a copy of your photo and crop and resize the image to the desired dimensions.
2- If you have a program with layering capability, duplicate the background layer.
4- Select the Elliptical Marquee Tool (or similar selection tool) and feather it about six to eight pixels. Feathering softens and blurs the edges by creating a transition boundary between the selected area and the surrounding pixels.
5- Adjust the brightness level. Not too much, though, or the face will look unnatural. If needed, also adjust contrast, usually at a setting less than the brightness setting.
6- Save the photo as a high quality jpeg with a compression level that preserves detail in the photo.
You can select more than one face in an image, or select other elements in the image, such as hair. With additional selections, you can also use this technique to effectively brighten only the eyes.
The following photo was severely underexposed due to strong backlighting. The bride’s face was selected and brightened. Next, both eyes were selected and slightly brightened to bring out some additional detail (note: the subject was very tan!)
Don’t just stick to brightening human faces
You can use this technique to selectively brighten areas in photos of other subjects too: pets, wildlife, you name it.
It’s worth repeating that you should not go heavy handed when using this selective processing technique. Even a subtle increase in brightness is effective.