IM_HIST
Section: C Library Functions (3)
Updated: 10 May 1991
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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