How to apply auto contrast to whole video in photoshop cc?

Hi

Yes you can do this.

1. Add a curves adjustment layer above the video layer (s).

2. In the timeline navigate to the frame you want to use as the basis for your adjustment

3. In the properties panel for the curve either:

a. Manually adjust the curves or

b. Alt click Auto and choose which auto setting you want to use

4. That is it if you want that single adjustment to apply to the whole video.

If you want to have more than one adjustment for different parts of the video - turn off the first curve in the layers panel. Add a second curve with a new adjustment. Turn back on the first curve. Then either:

a. Trim the start and end points in the timeline so they don't overlap

or

b. Keyframe the opacity of each curve adjustment layer - so they switch at the appropriate points

Dave