Smoothing Filters

Smoothing filters use edge-preserving real-time Iterative Least Squares algorithm for image processing. This algorithm is described in the article "Real-time Image Smoothing via Iterative Least Squares. Wei Liu, Pingping Zhang, Xiaolin Huang, Jie Yang, Chunhua Shen, Ian Reid". Link to the publication: https://arxiv.org/abs/2003.07504.

• FilterILSInit
  Initializes the filter specification structure.
• FilterILSGetBufferSize
  Computes the size of the work buffer.
• FilterILS
  Filters an image using smoothing algorithm.