frequency-separation-retouching.md

   1 ---
   2 title: Frequency separation retouching
   3 category: Others
   4 layout: 2017/sheet
   5 ---
   6
   7 ### Frequency separation retouching in Photoshop
   8
   9 Duplicate the layer twice. Perform these in each layer:
  10 {: .-setup}
  11
  12 #### Lower layer
  13
  14 - Apply **Gaussian Blur**
  15
  16 #### Upper layer
  17
  18 - Set layer mask to **Linear light**
  19 - Image → **Apply Image**
  20   - Layer: _(select the lower layer)_
  21   - Blending mode: `Subtract`
  22   - Scale: `2`
  23   - Offset: `128`
  24
  25 ### Reference
  26
  27 - <https://phlearn.com/amazing-power-frequency-separation-retouching-photoshop>
  28 {: .-also-see}