Share Email Print
cover

Proceedings Paper

Image enhancement for radiography inspection
Author(s): Xin Wang; Brian Stephen Wong; Tui Chen Guan
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The x-ray radiographic testing method is often used for detecting defects as a non-destructive testing method (NDT). In many cases, NDT is used for aircraft components, welds, etc. Hence, the backgrounds are always more complex than a piece of steel. Radiographic images are low contrast, dark and high noise image. It is difficult to detect defects directly. So, image enhancement is a significant part of automated radiography inspection system. Histogram equalization and median filter are the most frequently used techniques to enhance the radiographic images. In this paper, the adaptive histogram equalization and contrast limited histogram equalization are compared with histogram equalization. The adaptive wavelet thresholding is compared with median filter. Through comparative analysis, the contrast limited histogram equalization and adaptive wavelet thresholding can enhance perception of defects better.

Paper Details

Date Published: 12 April 2005
PDF: 7 pages
Proc. SPIE 5852, Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics, (12 April 2005); doi: 10.1117/12.621707
Show Author Affiliations
Xin Wang, Nanyang Technological Univ. (Singapore)
Brian Stephen Wong, Nanyang Technological Univ. (Singapore)
Tui Chen Guan, Republic of Singapore Air Force (Singapore)


Published in SPIE Proceedings Vol. 5852:
Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics

© SPIE. Terms of Use
Back to Top