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Langford's Basic Photography, 10th Edition by Richard Sawdon Smith, Anna Fox

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Chapter Nine Digital Postproduction

Since the creation of photography people have manipulated photographs in different ways, from carefully joining two negatives together to producing double exposures to create a ghost-like double image. However, with digital manipulation it seems the barriers to what we are capable of doing are restricted only by the limits of our imagination, and our creations can be completely seamless; pixels can be moved and altered in such a way that you would never know that they had been touched. It could be said that many photographers now work much like painters; they can choose what elements they want to remove, or ...

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