If you need a photo printer, check out Amazon's amazing bargains:ĭigital photo sizes are measured in pixels. The more you have, the greater the image detail. So that means the resolution of an image (how many dots/pixels that make up a photo) is determined by how many dots/pixels are along its width and its height, like this: 1800x1200. However, neither dots nor pixels have a standardised size. These dots and pixels combine together to create a photograph. Whereas each digital pixel is made from combining three colours: Red Green and Blue (RGB). The dots typically consist of four colours: Cyan Magenta Yellow and Key (Black), aka CMYK. For print, these points of colour are called ‘dots’, in digital photos they’re referred to as ‘pixels’. Both print and online images are made up of height and width, and contain many points of colour to represent what’s in the photograph. The same is true for online use of digital photos, where height and width are restricted by the size and shape of the viewing device and the quality of said image impacts how fast or slow it loads on computers and webpages.īoth print and online photo use are almost identical in every way, but each have their own specific requirements and limitations. poster size), and the quality of the paper also impacts what resize settings we use. postcard size) will need to be printed differently to big photos (i.e. There are two reasons why we might want to resize photographs: to print them or to display them online.
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