Example usage for android.graphics Color colorToHSV

Introduction

In this page you can find the example usage for android.graphics Color colorToHSV.

Prototype

public static void colorToHSV(@ColorInt int color, @Size(3) float hsv[])

Source Link

Document

Convert the ARGB color to its HSV components.

Usage

From source file:Main.java

/**
 * Shifts the hue by the offset specified
 * @param color/*from   w w w .j a v  a 2 s . c  om*/
 * @param offset
 * @return shifted color
 */
public static int shiftColorHue(int color, float offset) {
    float[] colorShiftHSV = new float[3];
    Color.colorToHSV(color, colorShiftHSV);
    colorShiftHSV[0] = (colorShiftHSV[0] + offset) % 360;

    return Color.HSVToColor(colorShiftHSV);
}

From source file:Main.java

public static int colorDarker(int color) {
    float[] hsv = new float[3];
    Color.colorToHSV(color, hsv);
    hsv[2] *= 0.8f; // value component
    return Color.HSVToColor(hsv);
}

From source file:Main.java

/**
 * Gets a darker color.//w w w  . j  av  a2 s . c  om
 * @param color the color to darken
 * @return the newly darkened color.
 */
public static int getDarkerColor(int color) {
    float[] hsv = new float[3];
    Color.colorToHSV(color, hsv);
    hsv[2] *= 0.80f * hsv[2];
    if (hsv[2] > 1) {
        hsv[2] = 1.0f;
    } else if (hsv[2] < 0) {
        hsv[2] = 0.0f;
    }
    return Color.HSVToColor(hsv);
}

From source file:Main.java

public static int generateRandomColour(long seed) {
    Random random = new Random(seed);
    int color = Color.argb(random.nextInt(), random.nextInt(), random.nextInt(), random.nextInt());

    float[] hsv = new float[3];
    Color.colorToHSV(color, hsv);

    //Adjust the saturation value, less than 1 is darker, greater than 1 is brighter
    hsv[2] *= 0.8;/* w w w  .j a  va2  s . com*/
    return Color.HSVToColor(hsv);
}

From source file:Main.java

/**
 * Gets a lighter color.//from   w w w.j  a v a 2s .com
 * @param color the color to lighten.
 * @return the newly lightened color.
 */
public static int getLigherColor(int color) {
    float[] hsv = new float[3];
    Color.colorToHSV(color, hsv);
    float value = 1.0f - 0.6f * (1.0f - hsv[2]);
    if (value > 1) {
        hsv[2] = 1.0f;
    } else if (value < 0) {
        hsv[2] = 0.0f;
    } else {
        hsv[2] = value;
    }
    return Color.HSVToColor(hsv);
}

From source file:Main.java

public static int interpolate(int a, int b, float x) {
    float[] hsvA = new float[3];
    float[] hsvB = new float[3];
    Color.colorToHSV(a, hsvA);
    Color.colorToHSV(b, hsvB);/*from  ww  w .  j av  a2s  .  c o  m*/
    for (int i = 0; i < 3; i++) {
        hsvB[i] = interpolate(hsvA[i], hsvB[i], x);
    }
    return Color.HSVToColor(hsvB);
}

From source file:Main.java

public static int[] colorSelectionButtonBackgroundGradient(int color) {
    int[] gradientColors = new int[2];
    float[] hsv = new float[3];

    // darken/*  ww  w  . java  2s. c o m*/
    Color.colorToHSV(color, hsv);
    hsv[2] *= DARKEN_LIGHTEN_FACTOR;
    gradientColors[0] = Color.HSVToColor(hsv);

    // lighten
    Color.colorToHSV(color, hsv);
    hsv[2] = 1 - DARKEN_LIGHTEN_FACTOR * (1 - hsv[2]);
    gradientColors[1] = Color.HSVToColor(hsv);

    return gradientColors;
}

From source file:Main.java

/**
 * Darken a color by the given percentage
 * @param color the color to darken/*from   www.ja  v a  2s  . c  om*/
 * @param percent the amount to darken the color by. In range 0-1
 * @return the darkened colour
 */
public static int darken(int color, float percent) {
    float[] hsv = new float[3];
    Color.colorToHSV(color, hsv);
    hsv[2] *= 1 - percent;
    return Color.HSVToColor(hsv);
}

From source file:Main.java

public static boolean isColorLight(int hex) {
    // convert hex string to int
    int rgb = Integer.parseInt(String.format("%d", hex), 16);

    int red = Color.red(hex);
    int green = Color.green(hex);
    int blue = Color.blue(hex);

    float[] hsb = new float[3];
    Color.colorToHSV(hex, hsb);
    //        float[] hsb = Color.RGBtoHSB(red, green, blue, null);

    float brightness = hsb[2];

    return hsb[2] > 0.5;
}

From source file:Main.java

private static int adjustColorBrightness(int argb, float factor) {
    final float[] hsv = new float[3];
    Color.colorToHSV(argb, hsv);

    hsv[2] = Math.min(hsv[2] * factor, 1f);

    return Color.HSVToColor(Color.alpha(argb), hsv);
}