To blur all unmasked paint on an image layer

1. Select the image layer you want to blur.

   See Select an image layer.

2. Choose Paint Edit > Layer Effect > Blur Layer.
   Note

   To set the amount of blurring, choose Paint Edit > Layer Effect > Blur Layer  to open the Blur Layer Options box, adjust the Blur Radius from 0 (no blur) to 32 (maximum blur), and click Go.

To blur paint by brushing

1. Select the image layer you want to blur paint on.

   See Select an image layer.

2. Choose Paint > Effectbrush > Blur Brush.
3. Drag the stylus on the area of the image layer you want to blur.
   Note

   To set the amount of blurring, open the Brush Options box (for example, choose Paint > Effectbrush > Blur Brush ) and adjust the Blur Strength from 0 (no blur) to 32 (maximum blur).

   Tip

   You can use any brush as a blur brush by setting Brush Mode to Blur in the Brush Options window.