Apply a filter to an array

These functions apply mean, median or Sobel filters to an array.

meanFilter(x, kernel)

medianFilter(x, kernel)

sobelFilter(x, dim, axis = 0)

Arguments

x	An object that can be coerced to an array, or for which a morph method exists.
kernel	A kernel array, indicating the scope of the filter.
dim	For sobelFilter, the dimensionality of the kernel. If missing, this defaults to the dimensionality of x.
axis	For sobelFilter, the axis along which to apply the operator, or 0 to apply it along all directions and generate a magnitude image. See also sobelKernel.

Value

A morphed array with the same dimensions as the original array.

See also

morph for the function underlying these operations, and kernels for kernel-generating functions.

Author

Jon Clayden <code@clayden.org>