Based on this image as would be the code to separate into, as if it were sub image without dividing 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.
}You can use the Clone method of the System.Drawing.Bitmap .
The following example creates a Bitmap corresponding to the part defined by the rectangle whose upper left corner has as 0,0 coordinates 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 its PictureBox.Image obtained as follows:
(I'm not sure if cast is possible, but I think so.)
Bitmap myBitmap = (Bitmap)pictureBox1.Image;
or
Bitmap myBitmap = new Bitmap(pictureBox1.Image);