Use Adobe Photoshop CS3 to turn your computer into an operating room or a mad scientist's laboratory. Perform "operations" to photographs such as splitting faces down the middle with no medical training, equipment, or threat to life. With Photoshop, the graphics software component of the Adobe Creative Suite, cutting tools make this kind of design work a quick process.
Open Adobe Photoshop CS3. Click the "File" menu. Select "Open." Browse to the picture of the face to split and double-click the image name.
Click the "Lasso" tool, the third icon from the top on the "Tools" column. Click the cursor on the top-middle of the person's head. Press and hold down the left mouse button. Continue dragging the cursor around the outline of the person's head to the chin.
Press and hold down the "Shift" key while still holding the left mouse button. Drag the cursor up to the starting point at the top of the head for a straight line. Release both the "Shift" key and the left mouse button and blinking dotted lines surround half the face.
Slowly drag the selected half of the face to the left or right, splitting it.
The graphical process of pulling the pieces of the face apart to split it will cause disruption in the picture, leaving a hole or a space -- the further apart the split, the more the problem will be noticed. Experiment with some of Photoshop's repair tools on the "Tools" column, including the "Clone Stamp," "Blur" and "Healing Brush" to close the gap.