What is digital image resolution?
Resolution refers to the ability to distinguish detail. The number of pixels produced by a camera is the camera’s resolution. Digital images are measured by a certain number of pixels wide by a certain number high. The larger the number of pixels, the greater the resolution. Too low a resolution results in what are called jaggies—a stairstepped look to diagonal lines and tonal edges. Resolution is expressed as pixels per inch 72 ppi, 150 ppi or 300 ppi, for example. Resolution is important when you begin to figure input (camera capture) and output (printing) numbers in the imaging process.
