Photoshop 4 Colors : Paperback : Pearson Education Limited : 9780201884241 : 0201884240 : 11 Mar 1996 : Providing practical advice, this text discusses colour theory, printing, screens, resolution, tonal range, scanning, colour correction, colour separation and more. "Before and after"" images are clearly presented showing the pitfalls and possibilites of colour photo manipulation."
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