Method

VipsImageaddalpha

Declaration [src]

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

Description [src]

Append an alpha channel.

See also: vips_image_hasalpha().

This method is not directly available to language bindings.

Parameters

out VipsImage
 

Output image.

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

NULL-terminated list of optional named arguments.

Return value

Returns: int
 

0 on success, -1 on error.