The most typical use of Despeckle is to eliminate noise or small black areas in an image. These areas are typically caused when the image is printed on a fax machine or as noise when the image is scanned.

Median can also be used to eliminate noise in an image, however, Median is a much harsher filter and has a tendency to distort lettering.

Use this method on images with bit depth greater than one. For bitonal (1-bit) images, use DocumentDespeckle.

Note: Available in Professional Edition.

ImagXpress Object  | ImagXpress Members  | DocumentDespeckle Method  | Median Method  | Document Image Processing  | Color Image Processing  | Image Processing