如何确保从返回图像的方法中处理图像

I have the following code:

我有以下代码：

private Image ResizeImage(Image image, int width, int height, bool paddOverflow)
{
    //Calculate sizes here. Removed for brevity

    var target = new Bitmap(image, finalWidth, finalHeight);
    using (var graphic = Graphics.FromImage(image))
    {
        graphic.Clear(Color.White);
        graphic.CompositingQuality = CompositingQuality.HighQuality;
        graphic.InterpolationMode = InterpolationMode.HighQualityBilinear;
        graphic.CompositingMode = CompositingMode.SourceCopy;
        graphic.DrawImage(target, 0, 0, finalWidth, finalHeight);

        return target;
    }
}

var image = ResizeImage(someImage, 100, 100, false);
private