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 createScaledBitmap(Bitmap bitmap, int width, int height) {
    Bitmap background = Bitmap.createBitmap((int) width, (int) height, Bitmap.Config.ARGB_8888);
    float originalWidth = bitmap.getWidth(), originalHeight = bitmap.getHeight();
    Canvas canvas = new Canvas(background);
    float scale = Math.max(width / originalWidth, height / originalHeight);
    float xTranslation = 0.0f, yTranslation = (height - originalHeight * scale) / 2.0f;
    if (originalWidth < originalHeight) {
        // scale = height / originalHeight;
        xTranslation = (width - originalWidth * scale) / 2.0f;
        yTranslation = 0.0f;/*from   www.  j  a v a 2 s .  c o  m*/
    }
    Matrix transformation = new Matrix();
    transformation.postTranslate(xTranslation, yTranslation);
    transformation.preScale(scale, scale);
    Paint paint = new Paint();
    paint.setFilterBitmap(true);
    canvas.drawBitmap(bitmap, transformation, paint);
    return background;
}

From source file:Main.java

public static Bitmap toGreyBitmap(Bitmap bitmap) {
    Bitmap grey = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas c = new Canvas(grey);
    Paint p = new Paint();
    ColorMatrix cm = new ColorMatrix();
    cm.setSaturation(0);// ww w.j a v  a 2s  . c  o  m
    p.setColorFilter(new ColorMatrixColorFilter(cm));
    c.drawBitmap(bitmap, 0, 0, p);
    return grey;
}

From source file:Main.java

public static Bitmap createBitmapFromView(View view) {
    // Clear any focus from the view first to remove any cursor
    view.clearFocus();//ww  w .  ja v a 2  s . c om
    Bitmap drawingBitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888);
    drawingBitmap.eraseColor(Color.TRANSPARENT);
    Canvas canvas = new Canvas(drawingBitmap);
    view.draw(canvas);
    return drawingBitmap;
}

From source file:Main.java

private static byte[] getBitmapBytes(Bitmap bitmap, boolean paramBoolean, int width, int heigth) {
    Bitmap localBitmap = Bitmap.createBitmap(width, heigth, Bitmap.Config.RGB_565);
    Canvas localCanvas = new Canvas(localBitmap);
    int i;/*from   www .  ja  va2  s . c o  m*/
    int j;
    if (bitmap.getHeight() > bitmap.getWidth()) {
        i = bitmap.getWidth();
        j = bitmap.getWidth();
    } else {
        i = bitmap.getHeight();
        j = bitmap.getHeight();
    }
    while (true) {
        localCanvas.drawBitmap(bitmap, new Rect(0, 0, i, j), new Rect(0, 0, width, heigth), null);
        if (paramBoolean)
            bitmap.recycle();
        ByteArrayOutputStream localByteArrayOutputStream = new ByteArrayOutputStream();
        localBitmap.compress(Bitmap.CompressFormat.JPEG, 100, localByteArrayOutputStream);
        localBitmap.recycle();
        byte[] arrayOfByte = localByteArrayOutputStream.toByteArray();
        try {
            localByteArrayOutputStream.close();
            return arrayOfByte;
        } catch (Exception e) {
            e.printStackTrace();
        }
        i = bitmap.getHeight();
        j = bitmap.getHeight();
    }
}

From source file:Main.java

private static Bitmap getResizeBitmap(View view, Bitmap bitmap) {
    Bitmap overlay = Bitmap.createBitmap((int) (view.getMeasuredWidth() / sScaleFactor),
            (int) (view.getMeasuredHeight() / sScaleFactor), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(overlay);
    canvas.translate(-view.getLeft() / sScaleFactor, -view.getTop() / sScaleFactor);
    canvas.scale(1 / sScaleFactor, 1 / sScaleFactor);
    Paint paint = new Paint();
    paint.setFlags(Paint.FILTER_BITMAP_FLAG);
    canvas.drawBitmap(bitmap, 0, 0, paint);
    return overlay;
}

From source file:Main.java

public static Bitmap handleImageNegative(Bitmap bm) {
    int width = bm.getWidth();
    int height = bm.getHeight();
    int color;/*  w  w  w  . jav  a2  s .co m*/
    int r, g, b, a;
    Bitmap bmp = Bitmap.createBitmap(bm.getWidth(), bm.getHeight(), Bitmap.Config.ARGB_8888);
    int[] oldPx = new int[width * height];
    int[] newPx = new int[width * height];
    bm.getPixels(oldPx, 0, width, 0, 0, width, height);
    for (int i = 0; i < width * height; i++) {
        color = oldPx[i];
        r = Color.red(color);
        g = Color.green(color);
        b = Color.blue(color);
        a = Color.alpha(color);

        r = 255 - r;
        g = 255 - g;
        b = 255 - b;
        if (r > 255) {
            r = 255;
        } else if (r < 0) {
            r = 0;
        }
        if (g > 255) {
            g = 255;
        } else if (g < 0) {
            g = 0;
        }
        if (b > 255) {
            b = 255;
        } else if (b < 0) {
            b = 0;
        }
        newPx[i] = Color.argb(a, r, g, b);
    }
    bmp.setPixels(newPx, 0, width, 0, 0, width, height);
    return bmp;

}

From source file:Main.java

public static Bitmap revertImage(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, 0, 0, 1, 1, 0, -1, 0, 1, 1, 0, 0, -1, 1, 1, 0, 0, 0, 1, 0 };

    ColorMatrix colorMatrix = new ColorMatrix();
    colorMatrix.set(matrixs);/*  w  w  w .j a  va 2  s.c om*/
    paint.setColorFilter(new ColorMatrixColorFilter(colorMatrix));

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

    return bitmap;
}

From source file:Main.java

public static Bitmap memoriesImage(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[] { 0.393f, 0.769f, 0.189f, 0, 0, 0.349f, 0.686f, 0.168f, 0, 0, 0.272f, 0.534f,
            0.134f, 0, 0, 0, 0, 0, 1, 0 };

    ColorMatrix colorMatrix = new ColorMatrix();
    colorMatrix.set(matrixs);/*  ww  w  .j  a v a 2  s .  c  om*/
    paint.setColorFilter(new ColorMatrixColorFilter(colorMatrix));

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

    return bitmap;
}

From source file:Main.java

public static Bitmap desaturateImage(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[] { 1.5f, 1.5f, 1.5f, 0, -1, 1.5f, 1.5f, 1.5f, 0, -1, 1.5f, 1.5f, 1.5f, 0, -1,
            0, 0, 0, 1, 0 };/*from   w  w  w .j a  v  a2  s . c o 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 doSherpiaEffect(Bitmap src, int depth, double red, double green, double blue) {
    int width = src.getWidth();
    int height = src.getHeight();
    Bitmap bmOut = Bitmap.createBitmap(width, height, src.getConfig());
    final double GS_RED = 0.3;
    final double GS_GREEN = 0.59;
    final double GS_BLUE = 0.11;
    int A, R, G, B;
    int pixel;// w  w  w .  j  ava 2  s. c  o  m

    for (int x = 0; x < width; ++x) {
        for (int y = 0; y < height; ++y) {
            pixel = src.getPixel(x, y);
            A = Color.alpha(pixel);
            R = Color.red(pixel);
            G = Color.green(pixel);
            B = Color.blue(pixel);
            B = G = R = (int) (GS_RED * R + GS_GREEN * G + GS_BLUE * B);

            R += (depth * red);
            if (R > 255) {
                R = 255;
            }

            G += (depth * green);
            if (G > 255) {
                G = 255;
            }

            B += (depth * blue);
            if (B > 255) {
                B = 255;
            }

            bmOut.setPixel(x, y, Color.argb(A, R, G, B));
        }
    }
    return bmOut;
}