How do you get a piece of an image?

Question

Based on this image how would be the code to separate in, as if it were sub image without splitting this image into different files:

Ex:

void splitImage(int numeroDeDivisoes, ref Image original, out Image[] final){
// aqui seria que nem essa imagem acima sendo dividida em Rectangle sem dividir o arquivo.
}

Answer 1

You can use the method Clone class System.Drawing.Bitmap.

The following example creates a Bitmap corresponding to the part defined by the rectangle whose upper left corner has as coordinates 0,0 with a length and width equal to 100:

Rectangle cloneRect = new Rectangle(0, 0, 100, 100);
System.Drawing.Imaging.PixelFormat format = myBitmap.PixelFormat;
Bitmap cloneBitmap = myBitmap.Clone(cloneRect, format);

In the present case myBitmap is your PictureBox.Image obtained as follows:
_{(I’m not sure if the cast is possible, but I believe.)}

Bitmap myBitmap = (Bitmap)pictureBox1.Image;

or

Bitmap myBitmap = new Bitmap(pictureBox1.Image);