| anisotrope_diff__ | Smooth an image by edge-preserving anisotropic diffusion. |
| fill_interlace__ | Interpolate 2 video half images. |
| fill_sp | Replace values outside of thresholds with average value. |
| gauss__ | Smooth using discrete gauss functions. |
| info_smooth | Information on smoothing filter smooth__. |
| mean__ | Smooth by averaging. |
| mean_n | Average gray values over several channels. |
| mean_sp | Suppress salt and pepper noise. |
| median | Median filtering with different rank masks. |
| median_separate | Separated median filtering with rectangle masks. |
| median_weighted | Weighted median filtering with different rank masks. |
| midrange | Calculate the average of maximum and minimum inside any mask. |
| min_max_filter | Smooth an image in the spatial domain to suppress noise. |
| rank__ | Smooth an image with an arbitrary rank mask. |
| sigma__ | Non-linear smoothing with the sigma filter. |
| smooth__ | Smooth an image using recursive filters. |
| trimmed_mean | Smooth an image with an arbitrary rank mask. |