Example usage for android.graphics Bitmap getHeight

Introduction

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

Prototype

public final int getHeight()

Source Link

Document

Returns the bitmap's height

Usage

From source file:Main.java

public static Bitmap zoomBitmap(Bitmap bitmap, int width, int height) {
    int w = bitmap.getWidth();
    int h = bitmap.getHeight();
    Matrix matrix = new Matrix();
    float scaleWidth = ((float) width / w);
    float scaleHeight = ((float) height / h);
    matrix.postScale(scaleWidth, scaleHeight);
    Bitmap newbmp = Bitmap.createBitmap(bitmap, 0, 0, w, h, matrix, true);
    return newbmp;
}

From source file:Main.java

public static Bitmap effectWhiten(Bitmap bitmap, int threshold) {
    if (bitmap == null) {
        return bitmap;
    }/*  ww  w  .j a v a2 s .com*/

    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 getBitmap(int background, Bitmap contour, float alpha) {
    Bitmap bitmap = Bitmap.createBitmap(contour.getWidth(), contour.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    canvas.drawColor(background);//from   w w w.j ava  2s  .  co  m
    return getBitmap(bitmap, contour, alpha);
}

From source file:Main.java

public static Bitmap circleBitmap(final Bitmap source) {
    int width = source.getWidth();
    int height = source.getHeight();

    Paint paint = new Paint();
    paint.setAntiAlias(true);// w  ww  .  ja  va  2 s.  co m
    paint.setColor(Color.WHITE);

    Bitmap clipped = Bitmap.createBitmap(width, height, Config.ARGB_8888);
    Canvas canvas = new Canvas(clipped);
    final float radius = width > height ? height / 2 : width / 2;
    canvas.drawCircle(width / 2, height / 2, radius, paint);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));

    Bitmap rounded = Bitmap.createBitmap(width, height, Config.ARGB_8888);
    canvas = new Canvas(rounded);
    canvas.drawBitmap(source, 0, 0, null);
    canvas.drawBitmap(clipped, 0, 0, paint);

    source.recycle();
    clipped.recycle();

    return rounded;
}

From source file:Main.java

public static Bitmap forceEvenBitmapSize(Bitmap original) {
    int width = original.getWidth();
    int height = original.getHeight();

    if (width % 2 == 1) {
        width++;//  w  ww. j a v  a2s.  co m
    }
    if (height % 2 == 1) {
        height++;
    }

    Bitmap fixedBitmap = original;
    if (width != original.getWidth() || height != original.getHeight()) {
        fixedBitmap = Bitmap.createScaledBitmap(original, width, height, false);
    }

    if (fixedBitmap != original) {
        original.recycle();
    }

    return fixedBitmap;
}

From source file:Main.java

public static Bitmap compressFixBitmap(Bitmap bitMap, int outWidth, int outHeight) {
    int width = bitMap.getWidth();
    int height = bitMap.getHeight();
    float scaleWidth = ((float) outWidth) / width;
    float scaleHeight = ((float) outHeight) / height;
    Matrix matrix = new Matrix();
    matrix.postScale(scaleWidth, scaleHeight);
    return Bitmap.createBitmap(bitMap, 0, 0, width, height, matrix, true);
}

From source file:Main.java

public static Bitmap getResizedBitmap(Bitmap bm, int newHeight, int newWidth) {
    final int w = bm.getWidth();
    final int h = bm.getHeight();
    final float sw = ((float) newWidth) / w;
    final float sh = ((float) newHeight) / h;

    Matrix matrix = new Matrix();
    matrix.postScale(sw, sh);//from   w  w w.  ja v a2 s  . com
    return Bitmap.createBitmap(bm, 0, 0, w, h, matrix, false);
}

From source file:Main.java

public static Bitmap scale(Bitmap b, int reqWidth, int reqHeight) {
    Matrix m = new Matrix();
    if (b.getWidth() > b.getHeight()) {
        reqWidth = (int) (reqHeight * (1.0 * b.getWidth() / b.getHeight()));
    } else {//from  ww  w  .j  a v a  2s  .  co m
        reqHeight = (int) (reqWidth * (1.0 * b.getHeight() / b.getWidth()));
    }
    m.setRectToRect(new RectF(0, 0, b.getWidth(), b.getHeight()), new RectF(0, 0, reqWidth, reqHeight),
            Matrix.ScaleToFit.CENTER);
    return Bitmap.createBitmap(b, 0, 0, b.getWidth(), b.getHeight(), m, true);
}

From source file:Main.java

private static Bitmap resizeBitmap(Bitmap bmp, float width, float height) {
    float xscale = width / bmp.getWidth();
    float yscale = height / bmp.getHeight();
    Matrix matrix = new Matrix();
    // resize original image
    matrix.postScale(xscale, yscale);/*from w w  w  . j a v  a 2s . c o m*/
    Bitmap dstbmp = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), matrix, true);
    return dstbmp;
}

From source file:Main.java

/**
 * Method to remove color in a Bitmap, creating a gray scale image.
 *
 * @param bmpOriginal The original Bitmap.
 * @return The gray scale Bitmap.//from w ww .jav  a2  s .  c o  m
 */
public static Bitmap toGrayscale(Bitmap bmpOriginal) {
    Bitmap bmpGrayscale = Bitmap.createBitmap(bmpOriginal.getWidth(), bmpOriginal.getHeight(),
            Bitmap.Config.ARGB_8888);

    Canvas canvas = new Canvas(bmpGrayscale);
    Paint paint = new Paint();
    paint.setAntiAlias(true);
    ColorMatrix cm = new ColorMatrix();
    cm.setSaturation(0);
    ColorMatrixColorFilter colorMatrixColorFilter = new ColorMatrixColorFilter(cm);
    paint.setColorFilter(colorMatrixColorFilter);
    canvas.drawBitmap(bmpOriginal, 0, 0, paint);

    return bmpGrayscale;
}