WHERE DO I FIND AND WHICH SHARPENING IS BEST FOR ME?
1) Sharpen and Sharpen More: While these may seem the most obvious filters to pick from the list, they are actually the worst. The sharpen more filter applies a stronger sharpening effect than sharpen, but both offer no control over the way you apply them and directly affect the pixels.
2)Sharpen Edges This filter again directly affects the original pixels of an image and targets areas in the image where significant color changes occur and sharpen them. Unlike the other filters, it only sharpens the edges of an image while preserving its overall smoothness.
3)Unsharp Mask: This is probably the most widely used way of sharpening and, until smart sharpen appeared, was the best method. While smart sharpen is considered the better option for photographers as it offers more control, you can still get great results from Unsharp Mask. It adjusts the contrast of edges details and creates the illustration of a sharper image. you can also add a smart filter to make your adjusts non-destructive to your image.
You have three sliders: Amount which determines how much sharping is applied, radius that threshold, which determines how far different pixels must be from the surrounding area before they are considered edge pixels and sharpened to access unsharp mask in photoshop elements 10, go to Enhance>Unsharp Mask
4) Smart Sharpen... Stated to be the best way to sharpen photos by Adobe due to its precise control, smart sharpen builds on the features in Unsharp Mask, Similar settings found in smart sharpen can accessed element 10 by clicking Enhance>Adjust Sharpness., although you cannot target shadows and highlights independently, but you can target areas in need of sharpening by clicking More Refined