Photo Booth is a software application for taking photos and videos with an iSight camera by Apple Inc. for macOS and iOS (on the iPad and iPad Mini available starting with the iPad 2).
Photo Booth was released in October 2005 and was available only on Macintosh computers that had a built-in iSight camera running Mac OS X Tiger (version 10.4).
Photo Booth displays a preview showing the camera's view in real time. Thumbnails of saved photos and videos are displayed along the bottom of this window. These can be shown or played by double clicking on the thumbnails.
Clicking the large red button underneath the preview area will take a picture after an optional countdown.
By default, Photo Booth's live preview and captured images are reversed horizontally, to simulate the user looking into a mirror; an option provides unreversed images.
Maps, Directions, and Place Reviews
Post-processing
After the picture is taken effects can be applied by clicking on the "Effects" button. Photo Booth has two sets of image effects that can be applied when taking a picture. The first set contains photographic filters similar to those in Adobe Photoshop; additional effects may be downloaded from websites. Another set allows replacing the background with a custom backdrop.
Backgrounds
The user can apply backdrops to provide an effect similar to a green screen. When a backdrop is selected, a message appears telling the user to step away from the camera. Once the background is analyzed, the user steps back in front of the camera and is shown in front of the chosen backdrop.
Since Mac OS X 10.5 Leopard, the application can recognize a still background, then replace it with either a pre-set image (built-in or user-supplied) or movie clip.
Backgrounds are available only on Macs featuring an Intel processor.
Source of the article : Wikipedia
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