NAME
im_maxpos_vec, im_minpos_vec - Find highest or lowest pixel values
SYNOPSIS
#include <vips/vips.h>
int im_maxpos_vec( IMAGE *im, int *xpos, int *ypos, double *maxima, int n );
int im_minpos_vec( IMAGE *im, int *xpos, int *ypos, double *minima, int n );
DESCRIPTION
im_maxpos_vec(3) fills the arrays xpos and ypos with the x and y
coordinates of the n pixels in the image im which have the highest
values. It writes those values (at double-precsion) into the
corresponding elements in the array maxima.
If there is a draw for the nth pixel, then which of the drawing pixels
is used is not defined.
im_minpos_vec(3) performs the same operation, looking for the lowest
valued pixels.
RETURN VALUE
The functions returns 0 on success and -1 on error.
SEE ALSO
im_maxpos(3), im_minpos(3)
COPYRIGHT
Copyright 2006, The Nottingham Trent University. Copyright 2006, Tom
Vajzovic.
AUTHOR
Tom Vajzovic
01 September 2006