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Journal of Electronic Imaging

Color filter array interpolation using color correlations and directional derivatives
Author(s): Nasser Kehtarnavaz; Hyukjoon Oh; Youngjun F. Yoo
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Paper Abstract

We present a color filter array interpolation algorithm to provide the missing colors associated with the commonly used Bayer pattern in digital still camera systems. The developed algorithm utilizes color correlation and directional derivative attributes of neighboring color pixels and is thus named C2D2. The main advantage of this algorithm is that it requires no user-defined parameter, as is the case in many edge-adaptive color filter array interpolation algorithms. Both an objective and subjective comparison are carried out with two other popular edge-adaptive algorithms. The results indicate that this algorithm consistently generates lower mean-squared interpolation errors in the RGB and L*a*b* color spaces.

Paper Details

Date Published: 1 October 2003
PDF: 12 pages
J. Electron. Imaging. 12(4) doi: 10.1117/1.1607966
Published in: Journal of Electronic Imaging Volume 12, Issue 4
Show Author Affiliations
Nasser Kehtarnavaz, Univ. of Texas/Dallas (United States)
Hyukjoon Oh, Texas Instruments Inc. (United States)
Youngjun F. Yoo, Texas Instruments Inc. (United States)

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