Constructor
VipsImagemask_ideal_ring
Declaration [src]
int
vips_mask_ideal_ring (
VipsImage** out,
int width,
int height,
double frequency_cutoff,
double ringwidth,
...
)
Description [src]
Optional arguments:
nodc: don’t set the DC pixelreject: invert the filter senseoptical: coordinates in optical spaceuchar: output a uchar image
Make an ideal ring-pass or ring-reject filter, that is, one with a sharp
ring positioned at frequency_cutoff of width width, where
frequency_cutoff and width are expressed as the range 0 - 1.
See also: vips_mask_ideal().
This constructor is not directly available to language bindings.
Parameters
out-
Type:
VipsImageOutput 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:
intImage size.
height-
Type:
intImage size.
frequency_cutoff-
Type:
doubleThreshold at which filter ends.
ringwidth-
Type:
doubleRing width.
...-
Type:
NULL-terminated list of optional named arguments.