[IPOL discuss] [IPOL announce] new article: Realistic Film Grain Rendering

[announcements about the IPOL journal]

A new article is available in IPOL: http://www.ipol.im/pub/art/2017/192/

Alasdair Newson, Noura Faraj, Bruno Galerne, and Julie Delon,
Realistic Film Grain Rendering,
Image Processing On Line, 7 (2017), pp. 165–183.
https://doi.org/10.5201/ipol.2017.192

Abstract
Film grain is the unique texture which results from the silver halide 
based analog photographic process. Film emulsions are made up of 
microscopic photo-sensitive silver grains, and the fluctuating density 
of these grains leads to what is known as film grain. This texture is 
valued by photographers and film directors for its artistic value. We 
present two implementations of a film grain rendering algorithm based on 
a physically realistic film grain model. The rendering algorithm uses a 
Monte Carlo simulation to determine the value of each output rendered 
pixel. A significant advantage of using this model is that the images 
can be rendered at any resolution, so that arbitrary zoom factors are 
possible, even to the point where the individual grains can be observed. 
We provide a method to choose the best implementation automatically, 
with respect to execution time.



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