Method

VipsImagemin

Declaration [src] 

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

Description [src]

This operation finds the minimum value in an image.

By default it finds the single smallest value. If size is set >1, it will find the size smallest values. It will stop searching early if has found enough values. Equal values will be sorted by y then x.

It operates on all bands of the input image: use vips_stats() if you need to find an minimum for each band.

For complex images, this operation finds the minimum modulus.

You can read out the position of the minimum with x and y. You can read out arrays of the values and positions of the top size minima with out_array, x_array and y_array. These values are returned sorted from smallest to largest.

If there are more than size minima, the minima returned will be a random selection of the minima in the image.

Optional arguments

  • x: horizontal position of minimum
  • y: vertical position of minimum
  • size: number of minima to find
  • out_array: return array of minimum values
  • x_array: corresponding horizontal positions
  • y_array: corresponding vertical positions

See also

vips_min(), vips_stats().

This method is not directly available to language bindings.

Parameters

out

Type: double*

Output pixel minimum.

The argument will be set by the function.
...

Type: 

NULL-terminated list of optional named arguments.

Return value

Type: int

0 on success, -1 on error.