Open Access Open Access  Restricted Access Subscription or Fee Access

Self - Similarity Based Image Demosaicking Using Frequency Mapping

S. Arumugan, K. Senthamarai Kannan, K. John Peter

Abstract


In this paper one new compactive demosaicing Algorithm is used for color filter array (CFA).In all the existing algorithm they detect the edges in horizontal-, vertical- or Omni-direction. In the existing algorithm does not detect diagonal edges. We proposed a new approach of similarity-based demosaicing algorithm using unified high-frequency (UHF) map. Similarities between pixels are calculated on a local map called UHF map. A missing sample must be interpolated from the neighboring samples that are highly correlated with the missing sample. This highly correlated neighboring samples are detected by similarity calculation. It is, thus, expected that the proposed algorithm is able to deal with edges of any direction such as diagonal edges. The proposed algorithm improve PSNR and image quality. Again, the proposed algorithm requires fewer resources.

Keywords


Color Filter Array, Demosaicing, Edge-Directed Interpolation, Unified High-Frequency Map.

Full Text:

PDF

References


B. E. Bayer, “Color imaging array,” U.S. Patent 3971 065, July 1976

Cok,D. R. “Signal processing method and apparatus for producing interpolated chrominance values in a sampled color image signal,” U.S. Patent 4 642 678, Feb 1987.

J. F. Hamilton Jr. and J. E. Adams, “Adaptive color plane interpolation in single sensor color electronic camera,” U.S. Patent 5 629 734, May1997.

B. Gunturk, Y. Altunbasak, and R. Mersereau, “Color plane interpolation using alternating projections,” IEEE Trans. Image Process., vol. 11, no. 9, pp. 997-1013, Sept. 2002..

K. Hirakawa and T. W. Parks, “Adaptive homogeneity-directed demosaicing algorithm,” IEEE Trans. Image Process., vol. 14, no. 3, pp. 360-369, March 2005.

X. Wu and N. Zhang, “Primary-consistent soft-decision color demosaicking for digital cameras,” IEEE Trans. Image Process. vol. 13,.

D. Menon, S. Andriani, and G. Calvagno, “Demosaicing with directional filtering and a posteriori decision,” IEEE Trans. Image Process., vol. 16, no. 1, pp. 132-141, Jan. 2007.

J. W. Glotzbach, R. W. Schafer, and K. Illgner, “A method of color filterarray interpolation with alias cancellation properties,” Proc. IEEE Int.

X.Li,“Demosaicing by successive approximation,” IEEE Trans. Image Process., vol. 14, no. 3, pp. 370-379, March 2005.

R. Lukac and K. N. Plataniotis, “Data adaptive filters for demosaicking: A framework,” IEEE Trans. Consumer Electron., vol. 51, no. 2, pp. 560-570, May. 2005

X.Li,“Demosaicing by successive approximation,” IEEE Trans. Image Process., vol. 14, no. 3, pp. 370-379, March 2005.

Gunturk B. K. , Altunbasak Y., and Mersereau R. M., “Color plane interpolation using alternating projections,” IEEE Trans. Image Process.,vol. 11, no. 9, pp. 997–1013, Sep. 2002.

Lu W. and Tan Y. P., “Color fiter array demosaicking: now method and performance measures,” IEEE Trans. Image Processing, vol. 12, no. 10, pp. 1194–1210, 2003.

Lukac R. and Plataniotis K. N., “Normalized color-ratio modeling for CFA interpolation,” IEEE Trans. Consumer Electronics, vol. 50, no. 2, pp.737–745, 2004a


Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.