Setting a blend width

In the Set Blend Width window, you select whether to use a blend width, and then enter the width you want.

Note: In areas containing bright or significantly different features, setting the blend width too high may cause "ghosting" or "doubling" of features.

To blend seams

In the Set Blend Width window, make sure the Use blend width check box is selected.
In the Blend width box, type or select the width you want, in pixels.