Method: Vips::Image#linear

Defined in:

lib/vips8/methods.rb

#linear(a, b, opts = {}) ⇒ Vips::Image

Calculate (a * in + b).

Parameters:

• a (Array<Double>) —

  Multiply by this

• b (Array<Double>) —

  Add this

• opts (Hash) (defaults to: {}) —

  Set of options

Options Hash (opts):

• :uchar (Boolean) —

  Output should be uchar

Returns:

• (Vips::Image) —

  Output image

# File 'lib/vips8/methods.rb', line 90