: Photoshop: how to move image to mask How can I move a black & white image to a layer mask in Photoshop? My image includes shadows, lights, etc and I can't just select area and paste

@Sarah814

open your BW image. If it's multilayered, make a flat copy and go to it.
select all or a part, copy to the clipboard
go to your photo (create a layer mask if there already does not exist one)
in the layer panel simultaneously Alt+left click the layer mask icon
paste
move the appeared new piece of mask if needed. It can be moved now without annoying traces*
click the photo icon in the layer panel to see the effect


*Note: You do better by preparing the BW image to fit into the mask excactly without moving. You can for example paste it at first as an ordinary layer and place it there. You can see through it by reducing the layer opacity. When your new mask candidate is ready, copy it to the mask (=paste in place) and disable or remove the temporary layer.

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@Nimeshi706

Select all...

Copy

Add a Layer Mask

In the Channels Panel highlight the layer mask channel and turn off visibility for the other channels. (And turn on visibility for the mask channel)

Paste.



You can then turn visibility back on for the other channels, turn visibility off for the mask channel, and you have a layer mask of your greyscale image.

You can also merely create a New Alpha Channel then paste. You won't have a mask this way, but you will have your greyscale image on a channel, which you can then use to create a selection and subsequently a mask.

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