Method

VipsImageavg

Declaration [src]

int
vips_avg (
  VipsImage* in,
  double* out,
  ...
)

Description [src]

This operation finds the average value in an image. It operates on all bands of the input image: use vips_stats() if you need to calculate an average for each band. For complex images, return the average modulus.

See also: vips_stats(), vips_bandmean(), vips_deviate(), vips_rank()

This method is not directly available to language bindings.

Parameters

`out`	`double*`
	Output pixel average.
	The argument will be set by the function.
`...`
	`NULL`-terminated list of optional named arguments.

Return value

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