When discussing the resolution of digital images, far too often people get hung up focusing on DPI (or PPI) as a way to measure the size and quality of a digital image. This may sound completely wrong to you, but the DPI of an image has nothing to do with digital image quality. The reason? A digital image’s resolution is expressed as it’s pixel dimensions, either as pixels by pixels or the often heard keyword, megapixels. So why do people get hung up on DPI? The simple reason is that when it comes to printing, DPI actually IS the measure of quality. Confusing, right?
10 DPI vs 1,000 DPI
Click on each image below. Can you tell the difference?