Image resolution

Term of the Week: Image resolution

In pixel-based images, the pixel is a square of solid color and is the smallest element making up the image. A pixel can be any size, though in practice, pixels are small enough to be undetectable viewed at normal reading distance. However, the smaller the pixel is, the richer in detail the image is. Pixels are measured by how many will fit within an inch, which means that the smaller the pixel, the greater number will fit within that inch. Images to be viewed on a computer screen work well at 72 PPI (pixels per inch) and for anything printed, the resolution should be 300 PPI.