Natural Image Denoising and Enhancement Based On Iterative Bilateral Filter
K. Shankar, Srinivasan S, Sivakumaran T. S · Journal of Chemical and Pharmaceutical Sciences · 2018
Natural images tend to get corrupted by impulse noise and other noises due to the abnormalities in the optical and imaging system.In this paper the author propose an iterative algorithm based on bilateral filter to remove impulse noise preserving the edges and fine details preferably in natural images.The dynamic bilateral filter parameter selection for individual iterations make this approach more efficient in terms of edge preserved denoising of natural images.To prevent over-smoothing of image while denoising, the gradient of the image is calculated and compared with the previous iteration.The proposed algorithm efficiently denoises the image within a maximum of 3 iterations for highly corrupted image.