As a review of the first part, hopefully these points were made clear.
| Properties of Printed Images | Properties of Video Images |
| Image size is measured in inches | Image size is measured in pixels |
| Image size does NOT vary with scanned resolution | Image size varies with scanned resolution |
| Image size is modified on paper by scaling | Image size is modified on screen by resampling |
| Image pixels are spaced on paper using specified scaled resolution | Image pixels are located at each screen pixel location, one for one |
| Several printer ink dots are used to represent color of one image pixel | One screen pixel location contains one image pixel, and can be of any RGB value |