An efficient method for robust gradient estimation of RGB color images

Abstract

A new vector-wise scheme for the gradient estimation in noisy color images is proposed. In the color images, different types of noise may corrupt the image. To reduce the effect of noise in the gradient estimation, the Distance Weighted Order Statistic Filter (DWOSF) is introduced, to be embedded in the gradient estimator. DWOSF is an order statistic filter in which the color outliers in a neighborhood are adaptively assigned smaller weights than the other pixels in that neighborhood. The simulation results show that the proposed method accurately estimates the true gradient vector in noisy RGB color images.

DOI: 10.1109/ICIP.2009.5414335

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Cite this paper

@article{Nezhadarya2009AnEM, title={An efficient method for robust gradient estimation of RGB color images}, author={Ehsan Nezhadarya and Rabab Kreidieh Ward}, journal={2009 16th IEEE International Conference on Image Processing (ICIP)}, year={2009}, pages={701-704} }