Example usage for android.graphics Bitmap createBitmap

Introduction

In this page you can find the example usage for android.graphics Bitmap createBitmap.

Prototype

public static Bitmap createBitmap(int width, int height, @NonNull Config config)

Source Link

Document

Returns a mutable bitmap with the specified width and height.

Usage

From source file:Main.java

public static Bitmap emboss(Bitmap bmp) {
    int width = bmp.getWidth();
    int height = bmp.getHeight();
    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565);

    int pixR = 0;
    int pixG = 0;
    int pixB = 0;

    int pixColor = 0;

    int newR = 0;
    int newG = 0;
    int newB = 0;

    int[] pixels = new int[width * height];
    bmp.getPixels(pixels, 0, width, 0, 0, width, height);
    int pos = 0;//from ww  w  .jav  a  2s.com
    for (int i = 1, length = height - 1; i < length; i++) {
        for (int k = 1, len = width - 1; k < len; k++) {
            pos = i * width + k;
            pixColor = pixels[pos];

            pixR = Color.red(pixColor);
            pixG = Color.green(pixColor);
            pixB = Color.blue(pixColor);

            pixColor = pixels[pos + 1];
            newR = Color.red(pixColor) - pixR + 127;
            newG = Color.green(pixColor) - pixG + 127;
            newB = Color.blue(pixColor) - pixB + 127;

            newR = Math.min(255, Math.max(0, newR));
            newG = Math.min(255, Math.max(0, newG));
            newB = Math.min(255, Math.max(0, newB));

            pixels[pos] = Color.argb(255, newR, newG, newB);
        }
    }

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

From source file:Main.java

public static Bitmap createScreenshot3(View view, int thumbnailWidth, int thumbnailHeight, int top) {
    if (view != null) {
        Bitmap mCapture;//from   w  w w  . j a  va2s  . c o  m
        try {
            mCapture = Bitmap.createBitmap(thumbnailWidth, thumbnailHeight, Bitmap.Config.RGB_565);
        } catch (OutOfMemoryError e) {
            return null;
        }
        Canvas c = new Canvas(mCapture);
        //            final int left = view.getScrollX();
        //            final int top = view.getScrollY();
        c.translate(0, -top);
        //c.scale(0.65f, 0.65f, left, top);
        try {
            // draw webview may nullpoint
            view.draw(c);
        } catch (Exception e) {
        }
        return mCapture;
    }
    return null;
}

From source file:Main.java

public static Bitmap generateGrayImage(Bitmap bm) {
    Bitmap bitmap = Bitmap.createBitmap(bm.getWidth(), bm.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    Paint paint = new Paint();

    float[] matrixs = new float[] { 0.33f, 0.59f, 0.11f, 0, 0, 0.33f, 0.59f, 0.11f, 0, 0, 0.33f, 0.59f, 0.11f,
            0, 0, 0, 0, 0, 1, 0 };/*www . j a v a  2 s  . co  m*/

    ColorMatrix colorMatrix = new ColorMatrix();
    colorMatrix.set(matrixs);
    paint.setColorFilter(new ColorMatrixColorFilter(colorMatrix));

    canvas.drawBitmap(bm, 0, 0, paint);

    return bitmap;
}

From source file:Main.java

public static Bitmap createBitmapFromBytes(byte[] data, int width, int height) {

    int[] colors = new int[width * height];
    Bitmap bitmap = Bitmap.createBitmap(width, height, Config.ARGB_8888);
    for (int y = 0; y < height; y++) {
        for (int x = 0; x < width; x++) {
            int index = (y * width + x) * 3;
            int r = (((byte) data[index + 0]) & 0x00FF) & getMask(8);
            int g = (((byte) data[index + 1]) & 0x00FF) & getMask(8);
            int b = (((byte) data[index + 2]) & 0x00FF) & getMask(8);
            colors[x + y * width] = Color.rgb(r, g, b);
        }// w  w  w.ja  v  a 2  s.c om
    }
    data = null;

    bitmap.setPixels(colors, 0, width, 0, 0, width, height);
    colors = null;

    return bitmap;
}

From source file:Main.java

public static Bitmap highSaturationImage(Bitmap bm) {
    Bitmap bitmap = Bitmap.createBitmap(bm.getWidth(), bm.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    Paint paint = new Paint();

    float[] matrixs = new float[] { 1.438f, -0.122f, -0.016f, 0, -0.03f, -0.062f, 1.378f, -0.016f, 0, 0.05f,
            -0.062f, -0.122f, 1.438f, 0, -0.02f, 0, 0, 0, 1, 0 };

    ColorMatrix colorMatrix = new ColorMatrix();
    colorMatrix.set(matrixs);// w  w w  . j av a2  s .  co m
    paint.setColorFilter(new ColorMatrixColorFilter(colorMatrix));

    canvas.drawBitmap(bm, 0, 0, paint);

    return bitmap;
}

From source file:Main.java

public static Bitmap drawableToBitmap(Drawable drawable, int width, int height) {
    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);

    Canvas canvas = new Canvas(bitmap);
    drawable.setBounds(0, 0, width, height);
    drawable.draw(canvas);/*from ww w.ja va 2 s. com*/
    return bitmap;
}

From source file:Main.java

public static Bitmap getBitmapFromView(View view) {
    //Define a bitmap with the same size as the view
    Bitmap returnedBitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888);
    //Bind a canvas to it
    Canvas canvas = new Canvas(returnedBitmap);
    //Get the view's background
    Drawable bgDrawable = view.getBackground();
    if (bgDrawable != null)
        //has background drawable, then draw it on the canvas
        bgDrawable.draw(canvas);/*from ww w. j a va 2s. com*/
    else
        //does not have background drawable, then draw white background on the canvas
        canvas.drawColor(Color.WHITE);
    // draw the view on the canvas
    view.draw(canvas);
    //return the bitmap
    return returnedBitmap;
}

From source file:Main.java

public static Bitmap createBitmap(int width, int height, Config config) {
    for (int i = 0; i < OUT_OF_MEMORY_RETRY_COUNT; ++i) {
        try {//w w w  . j av a 2 s . co m
            return Bitmap.createBitmap(width, height, config);
        } catch (OutOfMemoryError e) {
            // Retry with GC.
            System.gc();
        }
    }

    return Bitmap.createBitmap(width, height, config);
}

From source file:Main.java

public static Bitmap handleImageEffect(Bitmap bm, float hue, float saturation, float lum) {
    Bitmap bmp = Bitmap.createBitmap(bm.getWidth(), bm.getHeight(), Bitmap.Config.ARGB_8888);

    Canvas canvas = new Canvas(bmp);
    Paint paint = new Paint();

    ColorMatrix hueMatrix = new ColorMatrix();
    hueMatrix.setRotate(0, hue);/* w  w w.jav  a  2  s .c om*/
    hueMatrix.setRotate(1, hue);
    hueMatrix.setRotate(2, hue);

    ColorMatrix saturationMatrix = new ColorMatrix();
    saturationMatrix.setSaturation(saturation);

    ColorMatrix lumMatrix = new ColorMatrix();
    lumMatrix.setScale(lum, lum, lum, 1);

    ColorMatrix imageMatrix = new ColorMatrix();
    imageMatrix.postConcat(hueMatrix);
    imageMatrix.postConcat(saturationMatrix);
    imageMatrix.postConcat(lumMatrix);

    paint.setColorFilter(new ColorMatrixColorFilter(imageMatrix));
    canvas.drawBitmap(bm, 0, 0, paint);
    return bmp;
}

From source file:Main.java

public static Bitmap handleColorMatrix(Bitmap bm, float[] matrixs) {
    Bitmap bitmap = Bitmap.createBitmap(bm.getWidth(), bm.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    Paint paint = new Paint();

    ColorMatrix colorMatrix = new ColorMatrix();
    colorMatrix.set(matrixs);//www  .ja v  a  2 s.c o  m
    paint.setColorFilter(new ColorMatrixColorFilter(colorMatrix));

    canvas.drawBitmap(bm, 0, 0, paint);

    return bitmap;
}