TAILIEUCHUNG - PHOTOSHOP CS4 QuickSteps- P13

PHOTOSHOP CS4 QuickSteps- P13: QuickSteps books are recipe books for computer users. They answer the question “How do I.?” by providing quick sets of steps to accomplish the most common tasks in a particular program. The sets of steps are the central focus of the book. QuickSteps sidebars show you how to quickly do many small functions or tasks that support the primary functions. Notes, Tips, and Cautions augment the steps, yet they are presented in such a manner as to not interrupt the fl ow of the steps | 987654321 Unsharp Mask Smart Sharpen NOTE This book s bonus chapter Tricks of the Trade covers the Vanishing Point filter. See the Online Extra QuickFacts in the Introduction of this book for details on downloading the chapter. TIP Part of facial heaviness in typical photography is due to flash photography. The camera adds anywhere from 10 to 15 pounds to a person particularly when a flashbulb flattens the depth of a portrait photo. That s why if you met a runway model or movie star you d think they look a little too skinny they diet for the camera. 4. Threshold determines the number of levels tones in the image you want to affect. Higher values produce less sharpening try 0 to begin with. Hold your cursor in the preview window and then release to compare the original to the Unsharp Mask version. Whether you use Smart Sharpen with possible noise artifacting or Unsharp Mask which might introduce an embossing effect is a matter of personal aesthetics. The clock image in this example appears to enjoy a better restoration using Smart Sharpen. Do Plastic Surgery with the Liquify Filter The Liquify filter has been used on every third greeting card in stores to make cats with eyes the size of saucers and a guy who looks like he s about to swallow his own head. However Liquify has serious and aesthetic uses it treats the canvas as though it s malleable plastic and plastic surgery is the example shown in this section. Figure 10-17 shows a fellow whose nose is aquiline but strays to his right a little too much for movie star quality. Also his smile has distorted his cheeks and neck so his face appears heavier than it really is. Nose is crooked Cheeks are distorted Figure 10-17 You can make an average person look like a movie star via the Liquify filter. 232 Photoshop CS4 QuickSteps Using Filters QUICKFACTS IDENTIFYING THE TOOLS IN LIQUIFY Liquify has its own interface and its own tools. Here s a guide to what the tools do Forward Warp Pushes pixels in the direction in which

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