Android image processing example analysis

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public class Utils {
     /***
      * Load local image
      * @param context: Main running function instance
      * @param bitAdress: The image address, generally pointing to the drawable directory under R
      * @return
      */
    public final Bitmap CreatImage(Context context, int bitAdress) {
        Bitmap bitmaptemp = null;
        bitmaptemp = ((),bitAdress);
        return bitmaptemp;
    }
//2. The average image segmentation method, splitting the large image into N rows and N columns evenly, making it convenient for users to use    /***
      * Image segmentation
      * @param g
      *: Canvas
      * @param paint
      *:brush
      * @param imgBit
      *:picture
      x
      *: X-axis starting point coordinates
      * @param y
      *: Y-axis starting point coordinate
      * @param w
      *: Width of a single picture
      * @param h
      *: The height of a single picture
      * @param line
      *: Which column
      * @param row
      *: Which line
      */
    public final void cuteImage(Canvas g, Paint paint, Bitmap imgBit, int x,
            int y, int w, int h, int line, int row) {
        (x, y, x + w, h + y);
        (imgBit, x - line * w, y - row * h, paint);
        ();
    }
//3. Image scaling, scaling the current image    /***
      * Image scaling method
      * * @param bgimage
      *: Source image resources
      * @param newWidth
      *: Width after zooming
      * @param newHeight
      *: The height after zooming
      * @return
      */
    public Bitmap zoomImage(Bitmap bgimage, int newWidth, int newHeight) {
        // Get the width and height of this picture        int width = ();
        int height = ();
        // Create matrix object for operation pictures        Matrix matrix = new Matrix();
        // Calculate the scaling rate, and the new size is separated from the original size        float scaleWidth = ((float) newWidth) / width;
        float scaleHeight = ((float) newHeight) / height;
        // Zoom the image action        (scaleWidth, scaleHeight);
        Bitmap bitmap = (bgimage, 0, 0, width, height,
                matrix, true);
        return bitmap;
    }
//4. Drawing text with borders generally serves as a beautifying text in the game    /**
      * Draw text with borders
      * @param strMsg
      *: Draw content
      * @param g
      *:canvas
      * @param paint
      *:brush
      * @param setx
      *: X-axis starting coordinate
      * @param sety
      *: The starting coordinate of the Y axis
      * @param fg
      *: Foreground color
      * @param bg
      *: Background color
      */
    public void drawText(String strMsg, Canvas g, Paint paint, int setx,
            int sety, int fg, int bg) {
        (bg);
        (strMsg, setx + 1, sety, paint);
        (strMsg, setx, sety - 1, paint);
        (strMsg, setx, sety + 1, paint);
        (strMsg, setx - 1, sety, paint);
        (fg);
        (strMsg, setx, sety, paint);
        ();
    }
}