Vips.Image.spectrum (original) (raw)
Method
VipsImagespectrum
Declaration [src]
int
vips_spectrum (
VipsImage* in,
VipsImage** out,
...
)
Description [src]
Make a displayable (ie. 8-bit unsigned int) power spectrum.
If in is non-complex, it is transformed to Fourier space. Then the absolute value is passed through vips_scale() in log mode, andvips_wrap().
This method 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 method takes ownership of the returned data, and is responsible for freeing it. |
...
Type: ``
NULL-terminated list of optional named arguments.
Return value
Type: int
0 on success, -1 on error.