/*
* Copyright (c) 2011-2013, 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;
/**
* Image gradient at a specific pixel. Output of sparse gradient algorithms.
*
* @author Peter Abeles
*/
public interface GradientValue {
public void set( double dx , double dy );
/**
* Derivative along the x-axis
*/
public double getX();
/**
* Derivative along the y-axis
*/
public double getY();
}