How to work with Highlight,Mid-tone,Shadow
To work with Highlight/Mid-tone/Shadow
Choose either the Linear or Dynamic adjustment method. With the Linear option, the original settings of the image are displayed as Shadow at 0, Mid-tone at 50, and Highlight at 100. With the Dynamic option, the original setting for each area is 0.
For the Linear adjustment methods:
Drag the Shadow slider to the right or type a value up to 100 to darken increasingly lighter pixels and shift more of the image into the Shadow area.
Drag the Mid-tone slider or type a value between 0 and 100 to shift the middle area of the light scale. Note that this can cause some color distortion.
Drag the Highlight slider to the left or type a value down to 0 to lighten increasingly darker pixels, which shifts more of the image into the highlight area.
For the Dynamic adjustment methods:
Drag any slider to the right or type a value up to 100 to lighten the pixels of the specific area.
Drag any slider to the left or type a negative value to –100 to darken the pixels of the specific area.