ExtensionMode

public static final int AUTO = 5

Automatically adjusts the final image with the surrounding scenery. For example, the vendor library implementation might do the low light detection and can switch to low light mode or HDR to take the picture. Or the face retouch mode can be automatically applied when taking a portrait image. This delegates modes to the vendor library implementation to decide.

public static final int BOKEH = 1

Bokeh mode blurs the background of a photo. It is generally intended for taking portrait photos of people like what would be produced by a camera with a large lens.

public static final int FACE_RETOUCH = 4

Retouches face skin tone, geometry and so on when taking still images.

public static final int HDR = 2

HDR mode takes photos that keep a larger range of scene illumination levels visible in the final image. For example, when taking a picture of an object in front of a bright window, both the object and the scene through the window may be visible when using HDR mode, while in normal mode, one or the other may be poorly exposed. As a tradeoff, HDR mode generally takes much longer to capture a single image, has no user control, and may have other artifacts depending on the HDR method used.

public static final int NIGHT = 3

Gets the best still images under low-light situations, typically at night time.

public static final int NONE = 0

Normal mode without any specific effect applied.