Method

VipsImagefreqmult

Declaration [src]

int
vips_freqmult (
  VipsImage* in,
  VipsImage* mask,
  VipsImage** out,
  ...
)

Description [src]

Multiply in by mask in Fourier space.

in is transformed to Fourier space, multipled with mask, then transformed back to real space. If in is already a complex image, just multiply then inverse transform.

See also: vips_invfft(), vips_mask_ideal().

This method is not directly available to language bindings.

Parameters

`mask`	`VipsImage`
	Mask image.
	The data is owned by the caller of the function.
`out`	`VipsImage`
	Output image.
	The argument will be set by the function.
	The instance takes ownership of the data, and is responsible for freeing it.
`...`
	`NULL`-terminated list of optional named arguments.

Return value

Returns:	`int`
	0 on success, -1 on error.