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Bob Atkins has a great tutorial on Resizing your Digital Images which I've found helpful today in helping to explain resizing digital images in the last hour or so to a friend. Bob writes:
'One aspect of digital images which seems to cause a lot of confusion to beginners is the matter of image size. There are three basic measures of image size
- Pixel count - e.g 3000x2000 pixels
- Physical size - e.g. 4“ x 6”
- Resolution - e.g. 72 pixels per inch (ppi)
The confusion seems to arise because people aren't sure of how these are related. They wonder if ppi affects the size of the image you see on a monitor screen. We know that displays are measured in pixels (e.g. a 1024x1280 display), and that screens are a given width (e.g. 15“), it seems logical that the pixels/inch setting should affect the size of the displayed image. Logical maybe, but wrong....'
Continue reading Digital Image Resizing
Posted by Darren in our Tips category on December 30, 2004