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