Film grain is the visual texture due to silver halide crystals in analog film emulsions. Synthesising it in digital images is desirable for artistic and compression purposes.

Neural Film Grain Rendering

PhD work of Gwilherm Lesné at Télécom Paris (Yann Gousseau, Saïd Ladjal, Alasdair Newson): deep neural networks for analog film grain synthesis.

Neural film grain rendering: original landscape (left) and with synthesised grain (right)
Neural film grain rendering — original (left) and with synthesised grain (right)

A Stochastic Film Grain Model for Resolution-Independent Rendering

Postdoc work at Université Paris Descartes with Julie Delon and Bruno Galerne: a physically realistic stochastic model for film grain synthesis.

Louvre courtyard with synthesised film grain
Stochastic film grain rendering — Louvre courtyard
Cary Grant portrait with film grain
Cary Grant
Rose with film grain
Rose
Ship with film grain
Ship
Vintage car with film grain
Vintage car
Wizard of Oz still with film grain
Wizard of Oz
  • A. Newson, J. Delon, B. Galerne — Computer Graphics Forum 36(8): 684–699 (2017)
  • A. Newson, N. Faraj, B. Galerne, J. Delon — IPOL 7: 165–183 (2017)

Software: GPU and CPU (IPOL demo) versions — see Software and codes.