boofcv.struct.sparse.SparseGradientSafe Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of ip Show documentation

BoofCV is an open source Java library for real-time computer vision and robotics applications.

There is a newer version: 0.26

/*
 * Copyright (c) 2011-2015, Peter Abeles. All Rights Reserved.
 *
 * This file is part of BoofCV (http://boofcv.org).
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package boofcv.struct.sparse;

import boofcv.struct.image.ImageSingleBand;

/**
 * Wraps around other {@link SparseImageGradient} classes and checks to see if
 * the image is in bounds or not.  If it is out of bounds the return value is set to one.
 * 
 * @author Peter Abeles
 */
public class SparseGradientSafe
	implements SparseImageGradient
{
	SparseImageGradient wrap;
	G zero;
	
	public SparseGradientSafe(SparseImageGradient wrap) {
		this.wrap = wrap;

		try {
			zero = (G) wrap.getGradientType().newInstance();
		} catch (InstantiationException e) {
			throw new RuntimeException(e);
		} catch (IllegalAccessException e) {
			throw new RuntimeException(e);
		}
	}

	@Override
	public void setImage(T input) {
		wrap.setImage(input);
	}

	@Override
	public boolean isInBounds(int x, int y) {
		return wrap.isInBounds(x,y);
	}

	@Override
	public G compute(int x, int y) {                                                           
		if( wrap.isInBounds(x,y))
			return wrap.compute(x,y);
		else
			return zero;
	}

	@Override
	public Class getGradientType() {
		return wrap.getGradientType();
	}
}