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Optical Engineering

Removing chromatic aberration by digital image processing
Author(s): Soon-Wook Chung; Byoung-Kwang Kim; Woo-Jin Song
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Paper Abstract

Chromatic aberration is a form of aberration in color optical devices that produces undesirable color fringes along borders within images. It is becoming a more critical problem these days as digital cameras are getting smaller, while the number of picture elements is increasing. We propose a novel method for detecting and eliminating chromatic aberration using image processing. We first analyze the color behavior on edges that do not show chromatic aberration and propose a range limitation for color difference signals. When pixels violate the preceding condition, they can be considered as color fringes caused by chromatic aberration. Corrected pixel values are generated to eliminate the chromatic aberrations. The proposed algorithm corrects both lateral and longitudinal aberration in an image, and experimental results are provided to demonstrate its efficacy.

Paper Details

Date Published: 1 June 2010
PDF: 10 pages
Opt. Eng. 49(6) 067002 doi: 10.1117/1.3455506
Published in: Optical Engineering Volume 49, Issue 6
Show Author Affiliations
Soon-Wook Chung, Pohang Univ. of Science and Technology (Korea, Republic of)
Byoung-Kwang Kim, Pohang Univ. of Science and Technology (Korea, Republic of)
Woo-Jin Song, Pohang Univ. of Science and Technology (Korea, Republic of)

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