Phil Stripling <zzn.com> wrote:
: I'm completely confused by these concepts. Say my camera takes photos that
: are 640 x 480 pixels (about 8.6 x 6.7 inches) wide and high. I open the
: image using a software program, and it tells me that the image has a size
: of 640 x480 and a resolution of 72 ppi.
: Let's say I want to print this on an 8 x 10 inch sheet of paper. I can use
: my software to 'scale' the image from about 8.9 x 6.7 inches to about 10 x
: 7.5 inches (the closest I can get to 8 x 10 with a 480 x 640 image), but
: the 72 ppi remains the same.
: Camera manuals refer to the dimensions (640 x 480) as a 'resolution,' and
: my software says that's the dimensions. It says that 72 ppi is the
: resolution. My printer says it prints at a resolutions of 300, 600, or 1200
: Scaling the picture up from 640 x 480 to 720 x 540 still leaves me with a
: 72 ppi resolution. Some software will let me increase the 72 ppi to 144 or
: 300 by interpolation or fractals, whatever. This affects the dimensions of
: the image.
: So what's a good resource to study up on this? I want to figure out how to
: get semi-decent prints from digital images.
: Philip Stripling | email to the replyto address is presumed
: Legal Assistance on the Web | spam and read later. email to philip
: http://www.PhilipStripling.com/ | my domain is read daily.
You might want to take a look at www.scantips.com
E. Ray Lemar net