대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)
- 대한전자공학회 2007년도 하계종합학술대회 논문집
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- Pages.361-362
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- 2007
결함추출을 위한 강판튜브 엑스선 영상의 명암도 향상
Contrast Enhancement for Defects Extraction from Seel-tube X-ray Images
- Hwang, Jung-Won (Dept. of Media, Soongsil University) ;
- Hwang, Jae-Ho (Dept. of Electronic Eng., Hanbat University)
- 발행 : 2007.07.11
초록
We propose a contrast-controlled feature detection approach for steel radiograph image. X-ray images are low contrast, dark and high noise image. So, It is not simple to detect defects directly in automated radiography inspection system. Contrast enhancement, histogram equalization and median filter are the most frequently used techniques to enhance the X-ray images. In this paper, the adaptive control method based on contrast limited histogram equalization is compared with several histogram techniques. Through comparative analysis, CLAHE(contrast controlled adaptive histogram equalization) can enhance detection of defects better.
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