A method for segmenting an image using a background-based segmentation process
is provided. A document image (102) is low-pass filtered and decimated.
The decimated image is processed at low resolution by a low-resolution segmentation
(104) stage. Segmentation results include identification of a main background
and one or more objects. Objects that cannot be classified in text or picture classes
are further segmented into a local background and smaller objects. This process
is reiterated until all objects are classified in text or picture classes. The
results are overlaid on the image (102) during an original-resolution refinement
(106) stage to refine the segmentation.