Light-field photography (also known as plenoptic photography) is an imaging technology that makes it possible to adjust the focus in an existing picture. Unlike conventional images, any area in an image taken with a light-field camera can be brought into focus to make a particular feature sharper or make details of a particular area more visible. In photography, focus works similarly to how it works in the human eye: When you focus on one part of a scene, that part is clear but everything else is slightly blurred. In conventional photography, image focus is selected before the picture is taken and that focus is fixed in the resulting image. In light-field photography, all the information required to focus on any part of a scene is recorded and stored with the digital image. Clicking on a given area in an image taken with a light-field camera is like looking directly at objects in a scene in front of you: The area you click on becomes clearer while other areas in the scene are less distinct; if you click on a different point, the new area becomes clear while the area you were focused on before it blurs