//load ImageJ
%classpath config resolver scijava.public https://maven.scijava.org/content/groups/public
%classpath add mvn net.imagej imagej 2.0.0-rc-67

//create ImageJ object
ij = new net.imagej.ImageJ()

ij.op().help("copy.img")

input = ij.scifio().datasetIO().open("http://imagej.net/images/clown.png")

ij.notebook().display(input)

copyImg = ij.op().create().img(input)

//Remember that output comes before input
ij.op().copy().img(copyImg,input)

ij.notebook().display(copyImg)