im_hist3
Create a displayable histogram from an image
Usage
#include <vips/vips.h>
int im_hist( in, plotofhist, bandno )
IMAGE *in, *plotofhist;
int bandno;
Overview
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.
Releases
4 releases since Debian 3.1 (Sarge); the text changed 1 time.