Function
VipsImagebandrank
Declaration [src]
int
vips_bandrank (
VipsImage** in,
VipsImage** out,
int n,
...
)
Description [src]
Optional arguments:
index: pick this index from list of sorted values
Sorts the images in band-element-wise, then outputs an
image in which each band element is selected from the sorted list by the
index parameter. For example, if index
is zero, then each output band element will be the minimum of all the
corresponding input band elements.
By default, index is -1, meaning pick the median value.
It works for any uncoded, non-complex image type. Images are cast up to the smallest common-format.
Any image can have either 1 band or n bands, where n is the same for all the non-1-band images. Single band images are then effectively copied to make n-band images.
Smaller input images are expanded by adding black pixels.
See also: vips_rank().
This function is not directly available to language bindings.
Parameters
in-
Type: An array of
VipsImage*Array of input images.
The length of the array is specified in the nargument.The data is owned by the caller of the function. 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. n-
Type:
intNumber of input images.
...-
Type:
NULL-terminated list of optional named arguments.