TY - GEN
T1 - Directional-vector rational filters for color image interpolation
AU - Khriji, L.
AU - Gabbouj, M.
N1 - Funding Information:
Acknowledgment: This work has been supported by the European ESPRIT Project LTR 20229-Noblesse.
Publisher Copyright:
© 1998 IEEE.
PY - 1998
Y1 - 1998
N2 - Color image interpolation using Directional-Vector Rational Filters (DVRF) is investigated in this paper. We study this problem (or the upsampling problem) for two decimation schemes that are most commonly used in practice:(l) rectangular decimation (every-other-row and every-other-column sub-sampling) and (2) Quincunx decimation. For each decimation lattice, we present an adaptive re-sampling algorithm using a new nonlinear interpolator, which has desirable properties, such as the preservation of edges and image details, and the preservation of inter-channel correlations. Extensive simulations show that the proposed algorithms using DVRF outperform linear and nonlinear techniques; e.g. vector FIR median hybrid filters (VFMH). Image interpolated using DVRF are free from blockiness and jaggedness.
AB - Color image interpolation using Directional-Vector Rational Filters (DVRF) is investigated in this paper. We study this problem (or the upsampling problem) for two decimation schemes that are most commonly used in practice:(l) rectangular decimation (every-other-row and every-other-column sub-sampling) and (2) Quincunx decimation. For each decimation lattice, we present an adaptive re-sampling algorithm using a new nonlinear interpolator, which has desirable properties, such as the preservation of edges and image details, and the preservation of inter-channel correlations. Extensive simulations show that the proposed algorithms using DVRF outperform linear and nonlinear techniques; e.g. vector FIR median hybrid filters (VFMH). Image interpolated using DVRF are free from blockiness and jaggedness.
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U2 - 10.1109/ICM.1998.825608
DO - 10.1109/ICM.1998.825608
M3 - Conference contribution
AN - SCOPUS:13444269821
T3 - Proceedings of the 10th International Conference on Microelectronics, ICM 1998
SP - 236
EP - 240
BT - Proceedings of the 10th International Conference on Microelectronics, ICM 1998
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th International Conference on Microelectronics, ICM 1998
Y2 - 14 December 1998 through 16 December 1998
ER -