Method: Vips::Image#compass

Defined in:

lib/vips8/methods.rb

#compass(mask, opts = {}) ⇒ Vips::Image

Convolve with rotating mask.

Parameters:

• mask (Vips::Image) —

  Input matrix image

• opts (Hash) (defaults to: {}) —

  Set of options

Options Hash (opts):

• :times (Integer) —

  Rotate and convolve this many times

• :angle (Vips::Angle45) —

  Rotate mask by this much between convolutions

• :combine (Vips::Combine) —

  Combine convolution results like this

• :precision (Vips::Precision) —

  Convolve with this precision

• :layers (Integer) —

  Use this many layers in approximation

• :cluster (Integer) —

  Cluster lines closer than this in approximation

Returns:

• (Vips::Image) —

  Output image

# File 'lib/vips8/methods.rb', line 1550