Title :
A New Adaptive Edge Enhancement Algorithm for Color Laser Printers
Author :
Reddy, M.K.M. ; Misic, Vojislav B ; Saber, Eli ; Trask, J.
Author_Institution :
Dept. of Electr. Eng., Rochester Inst. of Technol., NY, USA
Abstract :
This paper presents a novel algorithm for improving the quality of edges in printed text. The algorithm is designed to add pixels at selected edge locations post 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 image documents.
Keywords :
document image processing; image colour analysis; image enhancement; image resolution; adaptive edge enhancement algorithm; color laser printers; dynamically generated threshold; edge quality; four-pixel neighborhood; image document; minimal memory resources; printed text quality; Algorithm design and analysis; Color; Heuristic algorithms; Image edge detection; Oncology; Pipelines; Printers; Printing; Rendering (computer graphics); Testing; Edge Rendering; Text Edge Quality;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2007. ICASSP 2007. IEEE International Conference on
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0727-3
DOI :
10.1109/ICASSP.2007.366255