I love the Clarity tool in Capture One 5 Pro. It does more to bring an image to life than any other single tool that I have every used. But I am very curious as to what it actually does. To my eyes, it increases contrast, but in a very different fashion than Clarity in Lightroom/ACR, which can really get ugly if you aren't careful. Clarity also seems to sharpen, but not in the same way as the Sharpening tool. What it looks like to me is deconvolution, as in Smart Sharpen, Focus Magic and DxO Optics Pro, but I have no idea if this is actually the case.
Does anyone outside of Phase One understand the Clarity tool?