Using Photoshop you can edit a picture's brightness or contrast, superimpose someone into a photo, adjust the color and hue, as well as change the output mode and format.
Mumber discovered a way to superimpose the image of a second person onto the negative and printed it off so it appeared that a ghost was in the picture as well!
Whether it's envy, greed, jealousy, or just plain meanness, some people will use the ease of photo manipulation to try and superimpose images of the underage star in provocative or blatantly sexual positions.
superimpose a 3cm grid on the image.
We could then just superimpose this shape on the daily record each time that we take a tablet.