I have an image of a pillow, I need to create another png image which is only the shadows of this image, so for :

enter image description here

I need to get a png with the shadows and wrinkles on the edges, so that if I put it on another flat pillow mask (just a flat shape), it will look real.

What are the steps to do that (not a pro user)

1 Answer 1

  • Open the Channels panel. CTRL+click on the red channel to make a selection from the channel
  • Return to the layers panel, and click Select > Inverse
  • Click the New Layer mask icon in the Layers panel
  • Click the coloured layer thumbnail to select it
  • Click Image > Adjustments > Desaturate

enter image description here

  • Also, why you choose the Red channel ? if the pillow was White, what would you choose ? Thanks for your help !
    – Curnelious
    Commented Feb 3, 2018 at 2:24
  • Also, why am i not able to do the same on a transparent pillow? I get the same effect but when trying to save as a png, it saved the original photo
    – Curnelious
    Commented Feb 3, 2018 at 3:36
  • @Curnelious I chose red because it is the lightest channel, you could use any channel you want. I don't know what you mean by "a transparent pillow". If you mean the background is already transparent, it should make no difference. If you have a background layer, make sure it is hidden or deleted before you export as png.
    – Billy Kerr
    Commented Feb 3, 2018 at 10:06

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