Share Email Print
cover

Proceedings Paper

Moire reduction using inflection point in frequency domain
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Digital still cameras generally use an optical low-pass filter(OLPF) to enhance the image quality by removing high spatial frequencies causing aliasing. While eliminating the OLPF can save manufacturing costs, images captured without using an OLPF include moiré in the high spatial frequency region of the image. Therefore, to reduce the presence of moiré in a captured image, this paper presents a moiré reduction method without the use of an OLPF. First, the spatial frequency response(SFR) of the camera is analyzed and moiré regions detected using patterns related to the SFR of the camera. Using these detected regions, the moiré components represented by the inflection point between the high frequency and DC components in the frequency domain are selected and then removed. Experimental results confirm that the proposed method can achieve moiré reduction while preserving detail information.

Paper Details

Date Published: 3 February 2014
PDF: 7 pages
Proc. SPIE 9015, Color Imaging XIX: Displaying, Processing, Hardcopy, and Applications, 90150J (3 February 2014); doi: 10.1117/12.2040860
Show Author Affiliations
Dae-Chul Kim, Kyungpook National Univ. (Korea, Republic of)
Wang-Jun Kyung, Kyungpook National Univ. (Korea, Republic of)
Bong-Seok Choi, Kyungpook National Univ. (Korea, Republic of)
Yeong-Ho Ha, Kyungpook National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 9015:
Color Imaging XIX: Displaying, Processing, Hardcopy, and Applications
Reiner Eschbach; Gabriel G. Marcu; Alessandro Rizzi, Editor(s)

© SPIE. Terms of Use
Back to Top