Gets the "distance" between two colors, their components assumed to be points in 3D space ranging from 0.0 to 1.0. - Java 2D Graphics

Java examples for 2D Graphics:Color

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Description

Gets the "distance" between two colors, their components assumed to be points in 3D space ranging from 0.0 to 1.0.

Demo Code


//package com.java2s;
import java.awt.Color;

public class Main {
    /**/*ww w. j  ava2  s  .c  o  m*/
     * Gets the "distance" between two colors, their components assumed to be
     * points in 3D space ranging from 0.0 to 1.0.
     * 
     * @param r1
     *            Red value of the first color.
     * @param g1
     *            Green value of the first color.
     * @param b1
     *            Blue value of the first color.
     * @param r2
     *            Red value of the second color.
     * @param g2
     *            Green value of the second color.
     * @param b2
     *            Blue value of the second color.
     * @return The "distance" between the two colors.
     */
    public static double getDistance(double r1, double g1, double b1,
            double r2, double g2, double b2) {
        double red = r2 - r1;
        double green = g2 - g1;
        double blue = b2 - b1;
        return Math.sqrt(red * red + green * green + blue * blue);
    }

    /**
     * Gets the "distance" between two colors, their components assumed to be
     * points in 3D space ranging from 0.0 to 1.0.
     * 
     * @param c1
     *            The first color.
     * @param c2
     *            The second Color.
     * @return The "distance" between the two colors.
     */
    public static double getDistance(final Color c1, final Color c2) {
        float rgb1[] = new float[3];
        float rgb2[] = new float[3];
        c1.getColorComponents(rgb1);
        c2.getColorComponents(rgb2);
        return getDistance(rgb1[0], rgb1[1], rgb1[2], rgb2[0], rgb2[1],
                rgb2[2]);
    }

    /**
     * Gets the "distance" between two colors, their components assumed to be
     * points in 3D space ranging from 0.0 to 1.0.
     * 
     * @param rgb1
     *            The RGB values of the first color.
     * @param rgb2
     *            The RGB values of the second color.
     * @return The "distance" between the two colors.
     */
    public static double getDistance(final double[] rgb1,
            final double[] rgb2) {
        return getDistance(rgb1[0], rgb1[1], rgb1[2], rgb2[0], rgb2[1],
                rgb2[2]);
    }

    /**
     * Gets the "distance" between two colors, their components assumed to be
     * points in 3D space ranging from 0.0 to 1.0.
     * 
     * @param rgb1
     *            The RGB value of the first color.
     * @param rgb2
     *            The RGB value of the second color.
     * @return The "distance" between the two colors.
     */
    public static double getDistance(final int rgb1, final int rgb2) {
        return getDistance(new Color(rgb1), new Color(rgb2));
    }
}

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