Class: Vips::Interpolate

Inherits:
Object show all
Defined in:
lib/vips/interpolate.rb

Overview

An interpolator. One of these can be given to operations like Vips::Image#affine or Vips::Image#mapim to select the type of pixel interpolation to use.

To see all interpolators supported by your libvips, try

$ vips -l interpolate

But at least these should be available:

  • :nearest Nearest-neighbour interpolation.
  • :bilinear Bilinear interpolation.
  • :bicubic Bicubic interpolation.
  • :lbb Reduced halo bicubic interpolation.
  • :nohalo Edge sharpening resampler with halo reduction.
  • :vsqbs B-Splines with antialiasing smoothing.

For example:

 im = im.affine [2, 0, 0, 2],
     :interpolate => Vips::Interpolate.new(:bicubic)

Defined Under Namespace

Modules: InterpolateLayout Classes: ManagedStruct, Struct

Instance Attribute Summary

Attributes inherited from GObject::GObject

#ptr, #references

Instance Method Summary collapse

Methods inherited from Object

#get, #get_pspec, #get_typeof, #get_typeof_error, print_all, #set, #signal_connect

Methods inherited from GObject::GObject

#ffi_managed_struct, ffi_managed_struct, ffi_struct, #ffi_struct

Constructor Details

#initialize(name) ⇒ Interpolate

Returns a new instance of Interpolate.

Raises:



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# File 'lib/vips/interpolate.rb', line 50

def initialize name
  name = name.to_s if name.is_a? Symbol
  ptr = Vips.vips_interpolate_new name
  raise Vips::Error if ptr.nil?

  super ptr
end