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Proceedings Paper

High-frequency digital magnification
Author(s): Thomas R. Edwards
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Paper Abstract

High frequency digital magnification is an application of two dimensional convolute integer (TDCI) technology. The results are images magnified by frequency sensitive convolution operators for replacement and interstitial point generation. The images to be presented are magnified from times two to times thirty-two with resolution enhancement. The artifacts, stair stepping diagonals, blocky gray area and blur, associated with classical digital magnification are absent. The frequency sensitivity of the operators will be illustrated with the use of mask sizes from 2 X 2 to 8 X 8 on a sample image. The use of resolution enhancement will be illustrated to show how the frequency response of an image is increased. The symmetry properties of TDCI technology which minimize the number of multiplications per convolution and enhance the overall system's throughput will be discussed, as well as execution times. This application of TDCI technology is coded in 'C' for the field of digital image processing software.

Paper Details

Date Published: 19 May 1992
PDF: 17 pages
Proc. SPIE 1657, Image Processing Algorithms and Techniques III, (19 May 1992); doi: 10.1117/12.58340
Show Author Affiliations
Thomas R. Edwards, TREC, Inc. (United States)

Published in SPIE Proceedings Vol. 1657:
Image Processing Algorithms and Techniques III
James R. Sullivan; Benjamin M. Dawson; Majid Rabbani, Editor(s)

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