/*
 * #%L
 * ImageJ OPS: a framework for reusable algorithms.
 * %%
 * Copyright (C) 2014 Board of Regents of the University of
 * Wisconsin-Madison and University of Konstanz.
 * %%
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * #L%
 */

package add;

import imagej.ops.Op;
import net.imglib2.Cursor;
import net.imglib2.IterableInterval;
import net.imglib2.RandomAccess;
import net.imglib2.RandomAccessibleInterval;
import net.imglib2.type.numeric.NumericType;

import org.scijava.ItemIO;
import org.scijava.plugin.Parameter;
import org.scijava.plugin.Plugin;

@Plugin(type = Op.class, name = "add")
public class AddConstantToImageFunctional<T extends NumericType<T>> implements
	Op
{

	@Parameter
	private IterableInterval<T> image;

	@Parameter(type = ItemIO.BOTH)
	private RandomAccessibleInterval<T> output;

	@Parameter
	private T value;

	@Override
	public void run() {
		final Cursor<T> c = image.localizingCursor();
		final RandomAccess<T> ra = output.randomAccess();
		while (c.hasNext()) {
			final T in = c.next();
			ra.setPosition(c);
			final T out = ra.get();
			out.set(in);
			out.add(value);
		}
	}

}

@@ -1507,16 +1507,44 @@
 e add;%0A%0A
+import imagej.ops.Function;%0A
 import i
@@ -1764,22 +1764,24 @@
 scijava.
-ItemIO
+Priority
 ;%0Aimport
@@ -1883,16 +1883,55 @@
  = %22add%22
+, priority = Priority.VERY_LOW_PRIORITY
 )%0Apublic
@@ -1996,115 +1996,46 @@
 T%3E%3E 
-implements%0A%09Op%0A%7B%0A%0A%09@Parameter%0A%09private IterableInterval%3CT%3E image;%0A%0A%09@Parameter(type = ItemIO.BOTH)%0A%09private
+extends%0A%09Function%3CIterableInterval%3CT%3E,
  Ran
@@ -2062,16 +2062,11 @@
 l%3CT%3E
- output;
+%3E%0A%7B
 %0A%0A%09@
@@ -2117,19 +2117,122 @@
 lic 
-void run() 
+RandomAccessibleInterval%3CT%3E compute(final IterableInterval%3CT%3E input,%0A%09%09final RandomAccessibleInterval%3CT%3E output)%0A%09
 %7B%0A%09%09
@@ -2252,20 +2252,20 @@
 T%3E c = i
-mage
+nput
 .localiz
@@ -2470,11 +2470,28 @@
 %0A%09%09%7D
+%0A%0A%09%09return output;
 %0A%09%7D%0A
-%0A
 %7D%0A

Make it a function