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L E S S O N 6 What You ll Do PHOTOSHOP 4-24 Incorporating Color Techniques Chapter 4 Manipulating an Image As you work in Photoshop, you might realize that some images have fundamental problems that need correcting, while others just need to be further enhanced. For example, you might need to adjust an image s contrast and sharpness, or you might want to colorize an otherwise dull image. You can use a variety of techniques to change the way an image looks. For example, you have learned how to use the Adjustments command on the Image menu to modify hue and saturation, but you can also use this command to adjust brightness and contrast, color balance, and a host of other visual effects. Understanding Filters Filters are Photoshop commands that can significantly alter an image s appearance. Experimenting with Photoshop s filters is a fun way to completely change the look of an image. For example, the Watercolor fil- In this lesson, you ll adjust the brightness ter gives the illusion that your image was and contrast in the Chili Shop colorized image, apply a Sharpen filter, and adjust the opacity of the lines applied by the filter. You ll also adjust the color balance of the Chili Shop image. . Fixing blurry scanned images An unfortunate result of scanning a picture is that the image can become blurry. You can fix this, however, using the Unsharp Mask filter. This filter both sharpens and smoothes the image by increasing the contrast along element edges. Here s how it works: the smoothing effect removes stray marks, and the sharpening effect emphasizes contrasting neighboring pixels. Most scanners come with their own Unsharp Masks built into the TWAIN driver, but using Photoshop, you have access to a more powerful version of this filter. You can use Photoshop s Unsharp Mask to control the sharpening process by adjusting key settings. In most cases, your scanner s Unsharp Mask might not give you this flexibility. Regardless of the technical aspects, the result is a sharper image. You can apply the Unsharp Mask by clicking Filter on the menu bar, pointing to Sharpen, then click Unsharp Mask. USE FILTERS, OPACITY, AND BLENDING MODES
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