Fix hue, saturation, lightness, contrast and white balance only within the selected area.
The Partial correction tool is a tool for making corrections to specific areas of your photo. Designate specific areas in your photo for correction for improving subjects darkened by back lighting, or for fine tuning the white balance on subjects that can appear too bright.
Circular Partial Correction
In the preview window you can correct below items to the designated circle or oval area.
Gradient Partial Correction
You can designate a region of your image that allows you to apply improvements based on a gradient. This is optimal for working with graduated application from a horizon line.