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chandoo
The Super Geek
Joined: 08 Sep 2007
Posts: 1917
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Location: Lahore
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 Posted: Oct 20, 2007 Topic Views : 1786 Post subject: Can you Find Picture in A Picture.........? |
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In common usage, an image (from Latin imago) or picture is an artifact, usually two-dimensional, that has a similar appearance to some subject—usually a physical object or a person.
Images may be two-dimensional, such as a photograph or screen display, or three-dimensional such as a statue. They may be captured by optical devices—such as cameras, mirrors, lenses, telescopes, microscopes, etc. and natural objects and phenomena, such as the human eye or water surfaces.
The word image is also used in the broader sense of any two-dimensional figure such as a map, a graph, a pie chart, or an abstract painting. In this wider sense, images can also be rendered manually, such as by drawing, painting, carving, rendered automatically by printing or computer graphics technology, or developed by a combination of methods, especially in a pseudo-photograph.
A volatile image is one that exists only for a short period of time. This may be a reflection of an object by a mirror, a projection of a camera obscura, or a scene displayed on a cathode ray tube. A fixed image, also called a hardcopy, is one that has been recorded on a material object, such as paper or textile.
A mental image exists in an individual's mind: something one remembers or imagines. The subject of an image need not be real; it may be an abstract concept, such as a graph, function, or "imaginary" entity. For example, Sigmund Freud claimed to have dreamt purely in aural-images of dialogues. The development of synthetic acoustic technologies and the creation of sound art have led to a consideration of the possibilities of a sound-image comprised of irreducible phonic substance beyond linguistic or musicological analysis.
A collection of non-volatile images providing an image changing with time is a film or motion picture.
Picture in Picture (PiP) is a feature of some television receivers and similar devices. One program (channel) is displayed on the full TV screen at the same time as one or more other programs are displayed in inset windows. Sound is usually from the main program only.
Picture and Picture (PAP, P&P) (commonly referred to as PBP - Picture by Picture) is a related feature showing two programs side-by-side on the screen, with the sound from one program being played through the speakers, and the sound from the other being sent to headphones.
Picture in Picture requires two independent tuners or signal sources to supply the large and the small picture. Two-tuner PiP TVs have a second tuner built in, but a single-tuner PiP TV requires an external signal source, which may be an external tuner, VCR, DVD player, or a cable box with composite video outputs. Picture in Picture is often used to watch one program while waiting for another to start, or advertisements to finish.
Adding a picture into an existing picture was done long before affordable PiP was available on consumer products. The first PiP was seen on the televised coverage of the 1976 Montreal Olympics where a Quantel digital framestore device was used to insert a close-up picture of the Olympic flame during the opening ceremony.
An early consumer implementation of Picture-In-Picture was the Multivision set-top box; it was not a commercial success. Later PiP became available as a feature of advanced television receivers.
The new HD DVD specification includes picture in picture, allowing viewers to see, say, the director's comment on a film they are watching.
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zubair73
Wondering
Joined: 19 Nov 2008
Posts: 19
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| Posted: Nov 19, 2008 Post subject: |
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wow picture in a picture
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