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Color filter array interpolation using color correlations and directional derivatives

[+] Author Affiliations
Nasser Kehtarnavaz

University of Texas at Dallas, Department of Electrical Engineering, Richardson, Texas 75083 E-mail: kehtar@utdallas.edu

Hyuk-joon Oh, Youngjun Yoo

Texas Instruments, Incorporated, 12500 TI Boulevard, MS 8638, Dallas, Texas 75243

J. Electron. Imaging. 12(4), 621-632 (Oct 01, 2003). doi:10.1117/1.1607966
History: Received Oct. 7, 2002; Revised Apr. 28, 2003; Accepted Apr. 30, 2003; Online October 22, 2003
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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 Lab color spaces. © 2003 SPIE and IS&T.

© 2003 SPIE and IS&T

Citation

Nasser Kehtarnavaz ; Hyuk-joon Oh and Youngjun Yoo
"Color filter array interpolation using color correlations and directional derivatives", J. Electron. Imaging. 12(4), 621-632 (Oct 01, 2003). ; http://dx.doi.org/10.1117/1.1607966


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