Blur filters and effects


    The commands in the Blur submenu in the Filter and Effect menus are useful for retouching images. They smooth transitions by averaging the pixels next to the hard edges of defined lines and shaded areas in an image.

    Note: These commands are raster-based and use the document's raster effects settings whenever you apply the effect to a vector object. (See Specifying raster effects settings.)

    Tip iconIf you apply these commands from the Effect menu, you can use the Appearance palette to modify or remove the effects from your object. (See Modifying and removing appearance attributes.)

    Gaussian Blur

    Quickly blurs a selection by an adjustable amount. This filter removes high-frequency detail and can produce a hazy effect.

    Radial Blur

    Simulates the soft blur created by a zooming or rotating camera. Choose Spin to blur along concentric circular lines, and then specify a degree of rotation; Zoom to blur along radial lines, as if zooming in or out of the image, and specify an amount from 1 to 100. Blur quality ranges from Draft for the fastest but grainy results to Good and Best for smoother results, which are indistinguishable except on a large selection. Specify the origin of the blur by dragging the pattern in the Blur Center box.