High Pass
The High Pass filter retains details where sharp colour transitions occur, generally at the edges, and suppresses the rest of the image.
The High Pass filter retains details where sharp colour transitions occur, generally at the edges, and suppresses the rest of the image.
When a High Pass filter is applied at a high radius value to a duplicate layer and combined with a contrast blend mode (such as overlay, soft light or hard light), it can be used as a useful sharpening technique.
This filter can be applied as a non-destructive, live filter. It can be accessed via the Layer menu, from the New Live Filter Layer category.
The following settings can be adjusted in the filter dialog: