@conference {1012,
	title = {Speckle noise reduction using fourth order diffusion homomorphic filter},
	booktitle = {Second International Conf on digital image processing and pattern recognition (DPPR 2012)},
	year = {2012},
	month = {13-15 July },
	address = {Chennai, India-Springer.},
	author = {V. K. Govindan and Jyothisha J Nair}
}
