Method

VipsImageabs

Declaration [src]

int
vips_abs (
  VipsImage* in,
  VipsImage** out,
  ...
)

Description [src]

This operation finds the absolute value of an image. It does a copy for unsigned integer types, negate for negative values in signed integer types, fabs() for float types, and calculates modulus for complex types.

::: seealso vips_sign().

Parameters

`out`	`VipsImage`
	Output `VipsImage`
	The argument will be set by the function.
	The instance takes ownership of the data, and is responsible for freeing it.
`...`	`none`
	`NULL`-terminated list of optional named arguments.

Return value

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