NAME
im_hist - create a displayable histogram from an image
SYNOPSIS
#include <vips/vips.h>
int im_hist( in, plotofhist, bandno )
IMAGE *in, *plotofhist;
int bandno;
DESCRIPTION
im_hist() creates a displayable histogram file for the image held by
the image descriptor in. The created displayable histogram is held in
the IMAGE descriptor plotofhist. If bandno == -1 a displayable
histogram of all input bands is created else the histogram of bandno
only is created.
See im_histplot(3) for rules on the size and scaling og the result.
RETURN VALUE
All functions returns 0 on success and -1 on error.
SEE ALSO
im_histgr(3), im_histplot(3).
COPYRIGHT
N. Dessipris
AUTHOR
N. Dessipris - 10/05/1991
10 May 1991