This link has been bookmarked by 61 people . It was first bookmarked on 25 Sep 2006, by KT Tomatsu.
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04 Sep 11
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The trick involves using some kind of Unsharp Mask filter, which as defined by the Photoshop Elements help file is a technique for giving the illusion of greater detail in an image (sharpness) by increasing the contrast between the light and dark areas of the image. Photoshop, Photoshop Elements and Paint Shop Pro all have an Unsharp Mask built in.
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Amount determines how much to increase the contrast of pixels. We're working with subtle highlights here, so for most cases you won't want to boost this by more than 20-30%.
Radius is used to identify how many pixels around edges to sharpen. For sharpening contrast in the localized fashion were working with here, a number between 40-70 seems to work well depending on the image, because you can really make edges stand out.
Threshold determines how far pixels must be from surrounding area in order to be considered an edge. By leaving the threshold at 0 the entire image is sharpened. Increasing this number to anything greater than 0 seems to make the effect useless for what we're doing here.
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Carl CamposThe trick involves using some kind of Unsharp Mask filter, which as defined by the Photoshop Elements help file is a technique for giving the illusion of greater detail in an image (sharpness) by increasing the contrast between the light and dark areas of
photos photography filters photoshop editing plugins haze unsharp contrast
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05 Oct 06
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Tom McLeodGood jumping off point for using Unsharp mask to adjust contrast without doing any sharpening.
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