Using Duplicate Layers
Duplicating the image layer before you apply the filter allows you to adjust the filter at a later stage. Although it may seem simpler to convert the layer into a Smart Object so that you can edit the filter afterward, there are times when you may want to apply different filters and masks for each filter effect, in which case it is necessary to duplicate the layer.
Using Duplicate Layers
To duplicate your image layer, drag it down to the Create a new layer icon at the bottom of the Layers palette. The duplicate layer will appear with “copy” added to the name.
ORIGINAL IMAGE
- In this example, the top layer has the Dry Brush filter applied, along with a mask that leaves the horse untouched. The middle layer has the Poster Edges filter applied, but due to the mask on the top layer it appears to apply only to the horse.
- You can then use different Opacity levels and blending modes to adjust the image further.
The final image: The top layer has the Dry Brush filter applied, and the middle layer has the Poster Edges filter applied.