Constructor

VipsImagemask_ideal_band

Declaration [src] 

int
vips_mask_ideal_band (
  VipsImage** out,
  int width,
  int height,
  double frequency_cutoff_x,
  double frequency_cutoff_y,
  double radius,
  ...
)

Description [src]

Make an ideal band-pass or band-reject filter, that is, one with a sharp cutoff around the point frequency_cutoff_x, frequency_cutoff_y, of size radius.

Optional arguments

  • nodc: gboolean, don’t set the DC pixel
  • reject: gboolean, invert the filter sense
  • optical: gboolean, coordinates in optical space
  • uchar: gboolean, output a uchar image

See also

vips_mask_ideal().

This constructor is not directly available to language bindings.

Parameters

out

Type: VipsImage

Output image.

The argument will be set by the function.
The caller of the function takes ownership of the returned data, and is responsible for freeing it.
width

Type: int

Image size.

height

Type: int

Image size.

frequency_cutoff_x

Type: double

Position of band.

frequency_cutoff_y

Type: double

Position of band.

radius

Type: double

Size of band.

...

Type: 

NULL-terminated list of optional named arguments.

Return value

Type: int

0 on success, -1 on error.