Example usage for android.graphics Color rgb

Introduction

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

Prototype

@ColorInt
public static int rgb(float red, float green, float blue)

Source Link

Document

Return a color-int from red, green, blue float components in the range \([0..1]\).

Usage

From source file:Main.java

public static Bitmap subtract(Bitmap bitmap1, Bitmap bitmap2) {
    int width = bitmap1.getWidth();
    int height = bitmap1.getHeight();
    Bitmap grayBitmap1 = toGrayScale(bitmap1);
    Bitmap grayBitmap2 = toGrayScale(bitmap2);
    Bitmap result = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    for (int x = 0; x < width; x++)
        for (int y = 0; y < height; y++) {
            int value1 = Color.blue(grayBitmap1.getPixel(x, y));
            int value2 = Color.blue(grayBitmap2.getPixel(x, y));
            int resultValue = Math.abs(value2 - value1);
            //                resultValue = (resultValue>255/3)?resultValue:0;
            result.setPixel(x, y, Color.rgb(resultValue, resultValue, resultValue));
        }/*from   ww w.j  a  v a 2  s.  c om*/
    //        grayBitmap1.recycle();
    //        grayBitmap2.recycle();
    return result;
}

From source file:Main.java

public static Bitmap effectWhiten(Bitmap bitmap, int threshold) {
    if (bitmap == null) {
        return bitmap;
    }//w  ww. j  av  a 2  s.  co m

    Bitmap dst = bitmap.copy(Bitmap.Config.ARGB_8888, true);

    int height = dst.getHeight();
    int width = dst.getWidth();
    int[] pixels = new int[(width * height)];
    dst.getPixels(pixels, 0, width, 0, 0, width, height);

    for (int YY = 0; YY < width; ++YY) {
        for (int XX = 0; XX < height; ++XX) {
            int bitmapColor = pixels[(YY + XX * width)];
            int[] color = { Color.red(bitmapColor), Color.green(bitmapColor), Color.blue(bitmapColor) };

            if (color[0] > threshold && color[1] > threshold && color[2] > threshold) {
                color[0] = 255;
                color[1] = 255;
                color[2] = 255;
            }
            pixels[(YY + XX * width)] = Color.rgb(color[0], color[1], color[2]);
        }
    }

    dst.setPixels(pixels, 0, width, 0, 0, width, height);
    return dst;
}

From source file:Main.java

public static Bitmap multiply(Bitmap bitmap1, Bitmap bitmap2) {
    double alpha = 0.1;
    int width = bitmap1.getWidth();
    int height = bitmap1.getHeight();
    Bitmap grayBitmap1 = toGrayScale(bitmap1);
    Bitmap grayBitmap2 = toGrayScale(bitmap2);
    Bitmap result = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    for (int x = 0; x < width; x++)
        for (int y = 0; y < height; y++) {
            int value1 = Color.blue(grayBitmap1.getPixel(x, y));
            int value2 = Color.blue(grayBitmap2.getPixel(x, y));
            int resultValue = (int) (Math.abs((value2 / 255.0) * (value1 / 255.0)) * 255);
            //                resultValue = (resultValue>255/2)?255:0;
            result.setPixel(x, y, Color.rgb(resultValue, resultValue, resultValue));
        }// ww  w  .j a va  2s  . c  o  m
    //        grayBitmap1.recycle();
    //        grayBitmap2.recycle();
    return result;
}

From source file:Main.java

public static int getGradientColor(int startColor, int endColor, int incrementStep, int i) {
    int r = interpolate(Color.red(startColor), Color.red(endColor), incrementStep, i),
            g = interpolate(Color.green(startColor), Color.green(endColor), incrementStep, i),
            b = interpolate(Color.blue(startColor), Color.blue(endColor), incrementStep, i);

    return Color.rgb(r, g, b);
}

From source file:Main.java

private static int getGradientColor(int startColor, int endColor, int incrementStep, int i) {
    int r = interpolate(Color.red(startColor), Color.red(endColor), incrementStep, i),
            g = interpolate(Color.green(startColor), Color.green(endColor), incrementStep, i),
            b = interpolate(Color.blue(startColor), Color.blue(endColor), incrementStep, i);

    return Color.rgb(r, g, b);
}

From source file:Main.java

/**
 * Convert rgb string color to color/*from   w w  w .ja v  a  2 s  .  c o  m*/
 *
 * @param rgb The rgb string representation of the color
 * @return An Integer color value
 */
public static Integer getColorFromRgb(@NonNull String rgb) {
    String[] rgbArray = rgb.split("\\s+");
    return Color.rgb(Integer.parseInt(rgbArray[0]), Integer.parseInt(rgbArray[1]),
            Integer.parseInt(rgbArray[2]));
}

From source file:Main.java

public static int darker(int color) {
    int r = Color.red(color);
    int b = Color.blue(color);
    int g = Color.green(color);

    return Color.rgb((int) (r * .9), (int) (g * .9), (int) (b * .9));
}

From source file:Main.java

public static Bitmap divide(Bitmap bitmap1, Bitmap bitmap2) {
    double alpha = Double.MIN_VALUE;
    int width = bitmap1.getWidth();
    int height = bitmap1.getHeight();
    Bitmap grayBitmap1 = toGrayScale(bitmap1);
    Bitmap grayBitmap2 = toGrayScale(bitmap2);
    Bitmap result = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    for (int x = 0; x < width; x++)
        for (int y = 0; y < height; y++) {
            int value1 = Color.blue(grayBitmap1.getPixel(x, y));
            int value2 = Color.blue(grayBitmap2.getPixel(x, y));
            //                int resultValue = (int) (Math.abs((Math.log((value1 + alpha)/(value2 + alpha))) * 1000));
            int resultValue = (int) ((Math.abs(Math.log((value1 + alpha) / (value2 + alpha)))) * 255);
            result.setPixel(x, y, Color.rgb(resultValue, resultValue, resultValue));
        }/*www . j a  va 2s  . c  o m*/
    //        grayBitmap1.recycle();
    //        grayBitmap2.recycle();
    return result;
}

From source file:Main.java

private static int getColorWithOverlay(int baseColor, int overlayColor, float overlayAlpha) {
    return Color.rgb(
            (int) (overlayAlpha * Color.red(baseColor) + (1f - overlayAlpha) * Color.red(overlayColor)),
            (int) (overlayAlpha * Color.green(baseColor) + (1f - overlayAlpha) * Color.green(overlayColor)),
            (int) (overlayAlpha * Color.blue(baseColor) + (1f - overlayAlpha) * Color.blue(overlayColor)));
}

From source file:Main.java

public static Bitmap drawTextToBitmap(Context gContext, int gResId, String gText) {
    Resources resources = gContext.getResources();
    float scale = resources.getDisplayMetrics().density;
    Bitmap bitmap = BitmapFactory.decodeResource(resources, gResId);

    Bitmap.Config bitmapConfig = bitmap.getConfig();
    // set default bitmap config if none
    if (bitmapConfig == null) {
        bitmapConfig = Bitmap.Config.ARGB_8888;
    }/* w  w w. j  a  v  a 2 s . co m*/
    // resource bitmaps are imutable,
    // so we need to convert it to mutable one
    bitmap = bitmap.copy(bitmapConfig, true);

    Canvas canvas = new Canvas(bitmap);
    // new antialised Paint
    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    // text color - #808080
    paint.setColor(Color.rgb(127, 127, 127));
    // text size in pixels
    paint.setTextSize((int) (14 * scale * 5));
    // text shadow
    paint.setShadowLayer(1f, 0f, 1f, Color.WHITE);

    // draw text to the Canvas center
    Rect bounds = new Rect();
    paint.getTextBounds(gText, 0, gText.length(), bounds);
    //      int x = (bitmap.getWidth() - bounds.width()) / 2;
    //      int y = (bitmap.getHeight() + bounds.height()) / 2;
    //draw  text  to the bottom
    int x = (bitmap.getWidth() - bounds.width()) / 10 * 9;
    int y = (bitmap.getHeight() + bounds.height()) / 10 * 9;
    canvas.drawText(gText, x, y, paint);

    return bitmap;
}