The Pixel is the basic building block of all images. In bitonal images, it is merely a black or white dot. An image registered so that it is taller than it is wide, with the narrow edge running along top and bottom. Indicates the number of dots, often measured in dpi, that make up an image on a screen or printer. The larger the number of dots, and thus the higher the resolution, the finer and smoother images can appear when displayed at a given size.
Low resolution causes jagged characters.
The ideal resolution is a trade- off between quality and the overhead in storage power and processing strength required to use it. This improves the viewing quality of the image by maintaining more information on the screen than would be there if the pixels were simply removed. An operation that changes the dimensions of a drawing by an operator entered multiplication factor. This operation can be performed in one or more directions. A mechanism for re-sizing part or all of an image.