There are a number of techniques involving masked adjustment layers, that can be used for modifying images. Viveza is designed to allow subtle selections to be made for application of adjustments to tone and colour. Viveza 2 — What do you get? When you install it, the software installer looks for any appropriate software on your computer and will install to the correct location for your plugins.
Control points are the method used by Nik Collection plugins to create precise and accurate masks to allow further enhancing an image. When placing a control point on an image the Nik plugin analyzes the image data in the area covered by the control point periphery in terms of contrast, color, and tonal value as a basis for creating a mask.