Example usage for org.apache.commons.math3.analysis.function Sinc value

Introduction

In this page you can find the example usage for org.apache.commons.math3.analysis.function Sinc value.

Prototype

public DerivativeStructure value(final DerivativeStructure t) 

Source Link

Usage

From source file:com.thalespf.dip.DeblurringTest.java

private static Complex[] motionBlur(double[] degradation, int width, int height) {
    Complex[] complex = new Complex[width * height];

    double[] temp = new double[2 * width * height];

    for (int y = 0; y < height; y++) {
        for (int x = 0; x < width; x++) {

            double teta = Math.PI * ((x - width / 2) % width * A + (y - height / 2) % height * B);

            Sinc sinc = new Sinc();

            double real = Math.cos(teta) * sinc.value(teta) * T;
            double imaginary = Math.sin(teta) * sinc.value(teta) * T;

            Complex c = new Complex(real, imaginary);
            Complex cConj = c.conjugate();

            temp[2 * (x + y * width)] = cConj.getReal();
            temp[2 * (x + y * width) + 1] = cConj.getImaginary();
        }/* w  w w . j  a v a 2  s. co m*/
    }

    for (int y = 0; y < height; y++) {
        for (int x = 0; x < width; x++) {
            int xTranslated = (x + width / 2) % width;
            int yTranslated = (y + height / 2) % height;

            double real = temp[2 * (yTranslated * width + xTranslated)];
            double imaginary = temp[2 * (yTranslated * width + xTranslated) + 1];

            degradation[2 * (x + y * width)] = real;
            degradation[2 * (x + y * width) + 1] = imaginary;

            Complex c = new Complex(real, imaginary);
            complex[y * width + x] = c;
        }
    }

    return complex;
}

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