Method: Vips::Image#premultiply

Defined in:

lib/vips8/methods.rb

#premultiply(opts = {}) ⇒ Vips::Image

Premultiply image alpha.

Parameters:

• opts (Hash) (defaults to: {}) —

  Set of options

Options Hash (opts):

• :max_alpha (Float) —

  Maximum value of alpha channel

Returns:

• (Vips::Image) —

  Output image

# File 'lib/vips8/methods.rb', line 465