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

/**
 * Get HSV array from color//from  ww w. ja v a 2  s.  c o  m
 * @param color color
 * @return HSV array, length = 3
 */
public static float[] getHSVFromColor(int color) {
    float hsv[] = new float[3];
    Color.colorToHSV(color, hsv);
    return hsv;
}

From source file:Main.java

/**
 * Darkens the given color to use on the status bar.
 * @param color Brand color of the website.
 * @return Color that should be used for Android status bar.
 */// www  . jav a2 s. c o m
public static int computeStatusBarColor(int color) {
    float[] hsv = new float[3];
    Color.colorToHSV(color, hsv);
    hsv[2] *= DARKEN_COLOR_FRACTION;
    return Color.HSVToColor(hsv);
}

From source file:Main.java

/**
 * Darkens the given color to use on the status bar.
 * @param color Color which should be darkened.
 * @return Color that should be used for Android status bar.
 *///from   w w w . jav  a 2  s.  c  om
public static int getDarkenedColorForStatusBar(int color) {
    float[] hsv = new float[3];
    Color.colorToHSV(color, hsv);
    hsv[2] *= DARKEN_COLOR_FRACTION;
    return Color.HSVToColor(hsv);
}

From source file:Main.java

public static Bitmap applySaturationFilter(Bitmap source, int level) {
    int width = source.getWidth();
    int height = source.getHeight();
    int[] pixels = new int[width * height];
    float[] HSV = new float[3];
    source.getPixels(pixels, 0, width, 0, 0, width, height);

    int index = 0;
    for (int y = 0; y < height; ++y) {
        for (int x = 0; x < width; ++x) {
            index = y * width + x;//from w ww . j av  a 2 s .  co  m
            Color.colorToHSV(pixels[index], HSV);
            HSV[1] *= level;
            HSV[1] = (float) Math.max(0.0, Math.min(HSV[1], 1.0));
            pixels[index] |= Color.HSVToColor(HSV);
        }
    }
    Bitmap bmOut = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    bmOut.setPixels(pixels, 0, width, 0, 0, width, height);
    return bmOut;
}

From source file:Main.java

/**
 *  Convert RGB Color to a HSV values. /*from  w w  w . j  av a2 s .c  om*/
 *  
 *  <li>H (Hue) is specified as degrees in the range 0 - 360.</li>
 *  <li>S (Saturation) is specified as a percentage in the range 1 - 100.</li>
 *  <li>V (Value) is specified as a percentage in the range 1 - 100.</li>
 *
 *  @param color the RGB color
 *  @return the HSV values
 */
public static int[] colorToHSV(int color) {
    int[] hsv = new int[3];
    float[] hsv_float = new float[3];

    Color.colorToHSV(color, hsv_float);

    hsv[0] = (int) Math.round(hsv_float[0]);
    hsv[1] = (int) Math.round(hsv_float[1] * 100);
    hsv[2] = (int) Math.round(hsv_float[2] * 100);

    hsv[0] = (int) (hsv_float[0]);
    hsv[1] = (int) (hsv_float[1] * 100);
    hsv[2] = (int) (hsv_float[2] * 100);

    return hsv;
}

From source file:Main.java

public static int brighter(int color, float factor) {
    float[] hsv = new float[3];
    Color.colorToHSV(color, hsv);
    hsv[2] *= (1f + factor); // value component
    for (int i = 1; i < hsv.length; i++) {
        hsv[i] = Math.min(1.0f, hsv[i]);
    }/*ww w  .  j a  v  a2s .  c  o m*/
    color = Color.HSVToColor(hsv);
    return color;
}

From source file:Main.java

/**
 *
 * @param color//from  w w  w.  j a v a2 s . c  o  m
 * @return
 */
public static int getDarkenedColor(int color) {
    float[] hsv = new float[3];
    Color.colorToHSV(color, hsv);
    hsv[2] *= 0.8f;
    return Color.HSVToColor(hsv);
}

From source file:Main.java

public static int darker(int color, float factor) {
    float[] hsv = new float[3];
    Color.colorToHSV(color, hsv);
    hsv[2] *= (1f - factor); // value component
    color = Color.HSVToColor(hsv);
    return color;
}

From source file:Main.java

/** Map background color preference to paper overlay color. */
public static int mapPaperColorPrefernce(int paperColorPreference) {
    final float hsv[] = new float[3];
    Color.colorToHSV(paperColorPreference, hsv);
    // Map saturation to alpha. The paper bitmap below the template will provide
    // the white background.
    final int alpha = (int) (hsv[1] * 255);
    // Saturation and value are set to max.
    hsv[1] = 1.f;/* www .  j a va2  s  .c  o m*/
    hsv[2] = 1.f;
    return Color.HSVToColor(alpha, hsv);
}

From source file:Main.java

public static int setMinValue(int color, float newValue) {
    float hsv[] = new float[3];
    Color.colorToHSV(color, hsv);
    hsv[2] = Math.max(hsv[2], newValue);
    return Color.HSVToColor(hsv);
}