Tuesday, 27 March 2012

Photo manipulation

Photo manipulation


Photo manipulation is the application of image editing techniques to photographs in order to create an illusion or deception (in contrast to mere enhancement or correction), through analog or digital means.

History

Before computers, photo manipulation was achieved by retouching with ink, paint, double-exposure, piecing photos or negatives together in the darkroom, or scratching Polaroids. Airbrushes were also used, whence the term "airbrushing" for manipulation.
The first recorded case of photo manipulation was in the early 1860s, when a photo of Abraham Lincoln was altered using the body from a portrait of John C. Calhoun and the head of Lincoln from a famous seated portrait by Mathew Brady – the same portrait which was the basis for the original Lincoln Five-dollar bill.





The 1980s saw the advent of digital retouching with Quantel computers running Paintbox, and Scitex imaging workstations being used professionally. Silicon Graphics computers running Barco Creator became available in the late 1980s which, alongside other contemporary packages, were effectively replaced in the market by Adobe Photoshop.

 Darkroom manipulation

Despite the popularity of digital photo manipulation, darkroom manipulations are regarded as traditional art rather than job related skill. Techniques are very similar to digital manipulation but they are harder to create than ones that are created digitally.

 



Technical retouching




Manipulation for photo restoration or enhancement (adjusting colors / contrast / white balance (i.e. gradational retouching), sharpness, removing elements or visible flaws on skin or materials, ...)
Creative retouching
Used as an art form or for commercial use to create more sleek and interesting creative images for advertisements. Creative retouching could be manipulation for fashion, beauty or advertising photography such as pack-shots (which could also be considered inherently technical retouching in regards to package dimensions and wrap-around factors) One of the most prominent disciplines in creative retouching is image-compositing. Here, the digital artist uses multiple photos to create a single composited image. Today, 3D elements are used more and more to add extra elements or even locations and backgrounds. This kind of image composition is widely used when conventional photography would be technically too difficult or impossible to shoot on location or in studio.



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