Name

filt_median - Calculate the median filtered image.

Usage

output = filt_median(input, nxk, nyk, nzk, kernelshape = "BLOCK")

Input

input

input image

nxk, nyk, nzk

Size of the kernel on each dimension.

• They have to be odd so that the center of kernal can be well defined.
• Note: For CIRCULAR kernel, we currently only allow circle or sphere kernel, i.e., nxk and nyk must be same for 2 dimensional image and nxk, nyk and nzk must be same for 3 dimensional image.

kernelshape

Shape of the kernel

• BLOCK is for block kernel (DEFAULT);
• CIRCULAR is for circular kernel;
• CROSS is for cross kernal;
• Note: For 1-dimensional image, these three kernels degenerate into the same shape.

Output

output

median filtered image

Method

Reference

Author / Maintainer

Pawel A. Penczek

Keywords

category 1

FILTER

category 2

SPATIAL, NONLINEAR

Files

filter.py

See also

Maturity

stable

works for most people, has been tested; test cases/examples available.

Bugs

None. It is perfect.