Example usage for android.graphics Color RGBToHSV

Introduction

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

Prototype

public static void RGBToHSV(@IntRange(from = 0, to = 255) int red, @IntRange(from = 0, to = 255) int green,
        @IntRange(from = 0, to = 255) int blue, @Size(3) float hsv[]) 

Source Link

Document

Convert RGB components to HSV.

Usage

From source file:Main.java

public static int getContrastColor(int color) {
    float[] hsv = new float[3];
    Color.RGBToHSV(Color.red(color), Color.green(color), Color.blue(color), hsv);
    if (hsv[2] < 0.5) {
        hsv[2] = 0.7f;/*w w  w . ja v a2 s . c o  m*/
    } else {
        hsv[2] = 0.3f;
    }
    hsv[1] = hsv[1] * 0.2f;
    return Color.HSVToColor(hsv);
}

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From source file:Main.java

/**
 * Convert an ARGB color to HSV components
 *
 * @param color an ARGB color/*from   ww w.j  av  a2 s  .  c  om*/
 * @return the HSV components for the specified color
 */
public static float[] colorToHSV(int color) {
    int r = Color.red(color);
    int g = Color.green(color);
    int b = Color.blue(color);

    float[] hsv = new float[3];
    Color.RGBToHSV(r, g, b, hsv);
    return hsv;
}

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From source file:Main.java

private static float[] getMainHSV(Bitmap bm) {
    Bitmap onePixelBitmap = Bitmap.createScaledBitmap(bm, 1, 1, true);
    int pixel = onePixelBitmap.getPixel(0, 0);

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

    float[] hsvVals = new float[3];
    Color.RGBToHSV(red, green, blue, hsvVals);
    return hsvVals;
}

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From source file:nl.hnogames.domoticz.Fragments.Switches.java

@Override
public void onColorButtonClick(final int idx) {
    ColorPickerDialog colorDialog = new ColorPickerDialog(getActivity());
    colorDialog.show();//  w w  w .j  a  v a 2  s . c  o  m
    colorDialog.onDismissListener(new ColorPickerDialog.DismissListener() {
        @Override
        public void onDismiss(int selectedColor) {
            float[] hsv = new float[3];
            Color.RGBToHSV(Color.red(selectedColor), Color.green(selectedColor), Color.blue(selectedColor),
                    hsv);
            Log.v(TAG, "Selected HVS Color: h:" + hsv[0] + " v:" + hsv[1] + " s:" + hsv[2]);

            mDomoticz.setRGBColorAction(idx, Domoticz.Json.Url.Set.RGBCOLOR, Math.round(hsv[0]), 100,
                    new setCommandReceiver() {
                        @Override
                        public void onReceiveResult(String result) {
                            Snackbar.make(coordinatorLayout, getContext().getString(R.string.color_set) + ": "
                                    + getSwitch(idx).getName(), Snackbar.LENGTH_SHORT).show();
                            getSwitchesData();
                        }

                        @Override
                        public void onError(Exception error) {
                            Snackbar.make(coordinatorLayout, getContext().getString(R.string.error_color),
                                    Snackbar.LENGTH_SHORT).show();
                        }
                    });
        }
    });
}

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From source file:com.cs528.style.style.weather.WeatherActivity.java

public float transferFromRgbToH(int color) {
    int red = Color.red(color);
    int green = Color.green(color);
    int blue = Color.blue(color);

    float[] hsv = new float[3];

    Color.RGBToHSV(red, green, blue, hsv);
    return hsv[0];
}

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