Method: Vips::Image.mask_butterworth

Defined in:
lib/vips8/methods.rb

.mask_butterworth(width, height, order, frequency_cutoff, amplitude_cutoff, opts = {}) ⇒ Vips::Image

Make a butterworth filter.

Parameters:

  • width (Integer) —

    Image width in pixels

  • height (Integer) —

    Image height in pixels

  • order (Float) —

    Filter order

  • frequency_cutoff (Float) —

    Frequency cutoff

  • amplitude_cutoff (Float) —

    Amplitude cutoff

  • opts (Hash) (defaults to: {}) —

    Set of options

Options Hash (opts):

  • :uchar (Boolean) —

    Output an unsigned char image

  • :optical (Boolean) —

    Rotate quadrants to optical space

  • :nodc (Boolean) —

    Remove DC component

  • :reject (Boolean) —

    Invert the sense of the filter

Returns:



# File 'lib/vips8/methods.rb', line 666