Set of two Arnold Imager plugins that use the Kuwahara Filter to achieve a stylized NPR look.

• Kuwahara Filter Imager (classic Kuwahara)
  Implements the classic Kuwahara Filter for a smooth, stylized effect.

• Polynomial Anisotropic Kuwahara Filter Imager
  Uses a polynomial anisotropic variation to provide greater artistic control. This imager is based on the research presented in the paper: Anisotropic Kuwahara Filtering with Polynomial Weighting Functions.

• C++ 17
• CMake 3.21+
• Arnold 7.3.5|7.4.0
• OpenCV
• OpenMP

Only tested on Windows, compiled with MSVC.

Maya Imager Demo, from a simple texture

Lion Photography

Higher radius example (R=15)

Lion Photography

This project is licensed under the MIT License.

Research paper: Anisotropic Kuwahara Filtering with Polynomial Weighting Functions.