Lower values increase the number of pixels changed by the sharpening effect. Move the Background slider to set the threshold for the effect. Sharpen - lets you accentuate the edges of the image by focusing blurred areas and increasing the contrast between neighboring pixels.This filter preserves most image detail, but its effect is most apparent in high-resolution images. Adaptive unsharp - lets you accentuate edge detail by analyzing the values of neighboring pixels.Unsharp mask - lets you accentuate edge detail and focus blurred areas in the image without removing low-frequency areas.You can reveal more image detail by sharpening an image.ġ Click Image ► Correction ► Tune sharpenĢ Move the Percentage slider to set the amount of sharpening that is applied each time you click a thumbnail button.ģ Click any of the following thumbnail buttons: Sharpening is usually done after adjusting the color and tone of an image and after resampling or resizing. For more information about lenses, see 'Working with lenses' on page 105. Filters can also be applied using a lens. To sharpen an image, or an editable area of an image, you can use filters or brush strokes. You can sharpen images to increase contrast, enhance image edges, or reduce shading.

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