Blurs an image using the median filter

dst = cv.medianBlur(src)
dst = cv.medianBlur(src, 'OptionName',optionValue, ...)

Input

• src Input 1-, 3-, or 4-channel image. When KSize is 3 or 5, the image type should be uint8, uint16, or single. For larger aperture sizes, it can only be uint8.

Output

• dst Destination array of the same size and type as src.

Options

• KSize Aperture linear size. It must be odd and greater than 1, for example 3, 5, 7 ... default 5

The function smooths an image using the median filter with the KSize x KSize aperture. Each channel of a multi-channel image is processed independently.

Note: The median filter uses BorderType=Replicate internally to cope with border pixels. See cv.copyMakeBorder.