This thesis presents a novel algorithm for improving quality of edges in printed text. The algorithm is designed to add pixels at selected edge locations after halftoning. The extent of the correction is proportional to the “strength” of the edge, as determined by comparing the local differences in a four-pixel neighborhood to a dynamically generated threshold. The process is computationally efficient and requires minimal memory resources. The performance of our proposed algorithm is clearly demonstrated on several characters and lines. While the algorithm aims to improve the quality of printed text (edges), it is possible to extend its application to improvement of any edge identifiable in an image document.
Library of Congress Subject Headings
Laser printing--Data processing; Color printing--Data processing; Imaging systems--Image quality
Department, Program, or Center
Electrical Engineering (KGCOE)
Reddy, Manoj Kumar, "A new adaptive edge enhancement algorithm for color laser printers" (2007). Thesis. Rochester Institute of Technology. Accessed from
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