What’s the
Advantage?
•Once image is defined in terms of colors at (x, y) locations
on grid, can change image
easily by altering numerical location or color values
•E.g., if we reverse our mapping above and make 10 =
white and 0 = black, the
image would look like this:
•Pixel information from one image can be copied and
pasted into another, replacing or
combining with previously stored pixels
