Apparatus and method for segmenting image data into windows and for classifying windows as image types

摘要

A method and apparatus for segmenting image data into windows and for classifying the windows as typical image types includes making two passes (S101-S109, S111-S117) through the image data. The method includes a step (S101-S109) of making a first pass through the image data to identify windows, a step (S110) to record the beginning points and image types of each of the windows, and a step (S111-S117) of making a second pass through the image data to label each of the pixels as a particular image type. A macro-detection method and apparatus can separate a scanline of image data into edges and image runs and classify each of the edges and image runs as standard image types. In the macro-detection method, image runs and edges are classified based on micro-detection results and based on image types of adjacent image runs. <IMAGE>