How to create a Bitmap deep copy

Question

I\'m dealing with Bitmaps in my application and for some purposes I need to create a deep copy of the Bitmap. Is there an elegant way how to do it?

I tried

Answer 1

Another way I stumbled on that achieves the same thing is to rotate or flip the image. Under the hood that seems to create a completely new copy of the bitmap. Doing two rotations or flips lets you end up with an exact copy of the original image.

result.RotateFlip(RotateFlipType.Rotate180FlipX);
result.RotateFlip(RotateFlipType.Rotate180FlipX);

Answer 2

Suppose you already have a bitmap called original with something in it

Bitmap original = new Bitmap( 200, 200 );     
Bitmap copy = new Bitmap(original.Width, original.Height);
using (Graphics graphics = Graphics.FromImage(copy))
{
  Rectangle imageRectangle = new Rectangle(0, 0, copy.Width, copy.Height);
  graphics.DrawImage( original, imageRectangle, imageRectangle, GraphicsUnit.Pixel);
}

This should create a copy of the same size, and draw the original into the copy.

Answer 3

B.Clone(new Rectangle(0, 0, B.Width, B.Height), B.PixelFormat)

Answer 4

You could serialize the bitmap and then deserialize it. Bitmap is serializable.

Answer 5

My environment:Windows 10, Visual Studio 2015, Framework 4.5.2

It works for me.

Bitmap deepCopy = new Bitmap(original);