TAILIEUCHUNG - 50 FAST PHOTOSHOP" CS TECHNIQUES- P5

5O FAST PHOTOSHOP" CS TECHNIQUES- P5: Adobe Photoshop CS has more than 550 menu items that can be accessed from the main menu bar. Additionally, it has 18 feature-rich tool palettes including the Toolbox, which has more than 65 tools. Plus, Adobe Photoshop CS offers a .plethora of tool presets, color swatches, actions, styles, brushes, blend modes, and much more. | While this technique isn t particularly exciting it is an essential one to make your photos look as good as they can. For this reason in this technique you learn three different approaches to sharpening images and you get more information on the hows and whys than most techniques in this book. The three different approaches covered are Using Uns harp Mask on the entire image Sharpening one or more channels instead of the entire image Convert image to LAB mode and sharpen only the Lightness channel I should point out that the best way to get sharp images is to use a high-quality high-resolution digital camera with a sharp lens then you usually still need to sharpen the image digitally. Although it would be nice I am sad to report you can not sharpen an of-focus digital photo. In fact when using the following sharpening techniques you ll quickly realize that we are not really sharpening them at at. Instead we are creatingthe illusion that they are sharp by digitally emphasizing edges in the image by making one side of an edge lighter and the other side darker. As you soon discover the illusion effect we use to make an image appear sharp is resolution dependent. This means that you should not apply sharpening effects to an image until you know what your final output will be. A sharpened high-resolution image won t have the optimal amount of sharpening if it is down-sized to be used as a low-resolution image on a Web page or vice-versa. Consequently sharpening ought to be one of the last steps in your One other reason to leave sharpening as one of the last steps in your is that the sharpening effect will likely be removed o r damaged if you first sharpen your image and then use a variety of other commands and filters. Chapter 2 Correcting and Enhancing Digital Photos USING UNSHARP MASK ON THE ENTIRE IMAGE STEP li OPEN FILE Choose File Open Ctrl O PC Cmd O Mac to display the Open dialog Double- click the llfolderto open it and then click the file to .

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