Pixels

}Images are made up for grid of discrete pixels, for 2D “picture elements”

}Pixels are point locations with associated sample values, usually of light intensities/colors, transparency, and other control information

}When we sample an image, we sample the point location along the continuous signal and we cannot treat the pixels as little circles or squares.

 

Basics-1

Computer graphics
                  Is all these  – " a consciously managed and documented technology directed toward communicating information accurately and descriptively.”

                   Its is Not----It is not a machine. It is not a computer, nor a group of computer programs. It is not the know-how of a graphic designer, a programmer, a writer, a motion picture specialist, or a reproduction specialist