IM_HIST(3)

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 IM_HIST(3)