Object | +-flash.filters.BitmapFilter | +-flash.filters.BlurFilter public class BlurFilter extends BitmapFilter
The BlurFilter class lets you apply a blur visual effect to a variety of objects in Flash. A blur effect softens the details of an image. You can produce blurs that range from a softly unfocused look to a Gaussian blur, a hazy appearance like viewing an image through semi-opaque glass. When the quality property of this filter is set to 1, the result is a softly unfocused look. When the quality property is set to 3, it approximates a Gaussian blur filter.
The use of filters depends on the object to which you apply the filter:
To apply filters to movie clips, text fields, and buttons at runtime, ...