Autochrome

Autochrome is a tool to synthesize realistic film grain. It is based on the research of Newson at al (2017).

The name Autochrome is based on the early color photography process Autochrome Lumière.

Installation

Requires Python 3.10

Create a virtual environment:

py -3.10 -m venv venv

Install the package:

pip install autochrome@https://github.com/beatreichenbach/autochrome/archive/refs/heads/main.zip

Usage

python -m autochrome --gui

Links

• The Challenge of Simulating Grain in Film Stocks of the Past

Spectral Reconstruction

• A Low-Dimensional Function Space for Efficient Spectral Upsampling
• Physically Meaningful Rendering using Tristimulus Colours
• Rgb to Spectrum Conversion
• GitHub: caiyuanhao1998/MST-plus-plus
• GitHub: boazarad/NTIRE2022_spectral

Film

• Advanced Emulsion
• Kodak Portra 800
• Fuji: Superia Xtra 800
• Kodak: Ektachrome 100
• Kodak: Portra 800

Grain

• Realistic Film Grain Rendering
• YouTube: Film Grain Rendering
• GitHub: alasdairnewson/film_grain_rendering_gpu
• GitHub: mitsuba-renderer/rgb2spec
• GitHub: nbvdkamp/rgb2spec-rs

Images

• https://stocksnap.io/photo/female-portrait-UOBQKFXUIG
• https://stocksnap.io/photo/male-portrait-NLX0RAPBGB
• https://stocksnap.io/photo/woman-female-JDXWHY8CIN
• https://stocksnap.io/photo/female-portrait-NWFLCH8IBN
• https://stocksnap.io/photo/woman-beach-FJCOO6JWDP

Contributing

Create a virtual environment:

python -m venv venv

Install the development package:

python -m pip install -e .[dev]

To release a new version:

semantic-release version