im_maxpos_vec

Langue: en

Version: 167375 (fedora - 05/07/09)

Section: 3 (Bibliothèques de fonctions)

Sommaire

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 2006, The Nottingham Trent University. Copyright 2006, Tom Vajzovic.

AUTHOR

Tom Vajzovic