The structure slider of NIK Viveza has become one of my favorite image post processing tools.
This is a description of Viveza Structure controls borrowed from John Paul Caponigro Illuminating Creativity at http://www.johnpaulcaponigro.com/blo...colorefex-pro/
Like Photoshop’s High Pass filter, Viveza’s Structure provides a single slider but offers more options with the inclusion of negative values for soft focus effects. In contrast to High Pass, Structure enhances contours with a line that is not as pronounced as Unsharp Mask (Structure is almost incapable of producing artificially hard contouring.) and thinner than High Pass (Structure can’t be used for enhancing planar contrast like high values of High Pass.). Structure accentuates texture somewhat, which can enhance noise as well as detail, but not as much as Unsharp Mask. When Structure is applied, luminosity contrast increases, more so in shadows than in highlights where very high values stop just short of compromising shadow detail. Think of Structure as occupying the visual territory that lies between Unsharp Mask and High Pass. - See more at: http://www.johnpaulcaponigro.com/blo....iCWn4sfR.dpuf
I have made an experiment and copied several dozen images posted on this site, opening them in Photoshop CS6. I added global structure to each and most (at least on my monitor) have benefited, some having benefited to a great degree.
Another PLUS factor in using NIK Viveza Structure (as well as with all NIK controls) is that you do not need to globally edit with the structure slider. With the help of the control point system, you can easily select certain areas in your image to add or subtract structure. Although I don't subtract structure very often, it is sometimes advantageous to subtract some structure from a face or faces in an image. This is especially true of female faces...