How Do I Do That in Photoshop?

Reduce the Intensity of an Edit?

If you’ve applied a filter (like Gaussian Blur or Unsharp Mask), or maybe even an adjustment (like Levels or Curves), and you think your changes were too intense, you can back those off using the Fade feature. The Fade feature is kind of like undo on a slider. To use it, immediately after you apply a filter or adjustment, go under the Edit menu and choose Fade. You’ll actually see the name of what you just did appear right after the word Fade in the menu, so if you applied Unsharp Mask, it will read “Fade Unsharp ...