@article {aja2009automatic,
	title = {Automatic noise estimation in images using local statistics. Additive and multiplicative cases},
	journal = {Image and Vision Computing},
	volume = {27},
	number = {6},
	year = {2009},
	pages = {756{\textendash}770},
	publisher = {Elsevier},
	author = {Santiago Aja-Fern{\'a}ndez and Gonzalo Vegas-S{\'a}nchez-Ferrero and Marcos Martin-Fernandez and Carlos Alberola-Lopez}
}
