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BoofCV is an open source Java library for real-time computer vision and robotics applications.
/*
* Copyright (c) 2011-2017, 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.alg.weights;
/**
* Weights from a uniform distribution within a symmetric square region. All samples within the region return
* a constant value, which is 1.0/w^2, where w = radius*2+1. For performance reasons, no checks are done to see if the
* sample point is outside the radius and should be zero.
*
* @author Peter Abeles
*/
public class WeightPixelUniform_F32 implements WeightPixel_F32 {
int radiusX,radiusY;
float weight;
public WeightPixelUniform_F32() {
}
public WeightPixelUniform_F32(int radiusX, int radiusY) {
setRadius(radiusX,radiusY);
}
@Override
public float weightIndex(int index) {
return weight;
}
@Override
public float weight(int x, int y) {
return weight;
}
@Override
public void setRadius(int radiusX, int radiusY) {
this.radiusX = radiusX;
this.radiusY = radiusY;
int w = radiusX*2+1;
int h = radiusY*2+1;
weight = 1.0f/(w*h);
}
@Override
public int getRadiusX() {
return radiusX;
}
@Override
public int getRadiusY() {
return radiusY;
}
}