Apply Shape Adaptive Blur.

The filter accepts the following options:

luma_radius, lr

Set luma blur filter strength, must be a value in range 0.1-4.0, default value is 1.0. A greater value will result in a more blurred image, and in slower processing.

luma_pre_filter_radius, lpfr

Set luma pre-filter radius, must be a value in the 0.1-2.0 range, default value is 1.0.

luma_strength, ls

Set luma maximum difference between pixels to still be considered, must be a value in the 0.1-100.0 range, default value is 1.0.

chroma_radius, cr

Set chroma blur filter strength, must be a value in range -0.9-4.0. A greater value will result in a more blurred image, and in slower processing.

chroma_pre_filter_radius, cpfr

Set chroma pre-filter radius, must be a value in the -0.9-2.0 range.

chroma_strength, cs

Set chroma maximum difference between pixels to still be considered, must be a value in the -0.9-100.0 range.

Each chroma option value, if not explicitly specified, is set to the corresponding luma option value.