[Ian Jones]

dpi = ppi

Inch = Inch

They are the same thing.

DO NOT confuse them with Pixels/Centimetre, I have in the past and it is easy to do in Photoshop if you are not watching carefully.

Now to your problem with size.

72dpi is a standard screen resolution, all images on the Internet, or any computer screen are 72dpi. When you print stuff out, you should have images at 300dpi.

What has happened is that you scanned at 300dpi 100%, but you are displaying the image at 72dpi within Photoshop. Your image will not lose any information because of this, all Photoshop has done is zoomed in on the image, no matter how big or small it is. If you scanned at 300dpi, because your monitior can't display any higher that 72dpi, it just zooms into the image until it is displayed at 72dpi.

You haven't lost any quality in the image, it now depends on how you are going to display the final image. Are you going to show it to your class on the screen? or are you going to print it out?

Within Photoshop if you goto IMAGE>IMAGE SIZE a dialog box pops up, you can specify certain information. You shoul see information about pixel dimensions, and print size. Pixel dimensions let you specify how many pixels the image takes up on your screen. Print size lets you specify how many inches or centimetres it will be when you print it out. There is also a box that lets you specify the print resolution.

I hope this helps. It all depends on whether you will be printing it out or showing it on screen.

[artboy]

I'm working on an assignment for my graphics class, making something for the "travel channel" using After Effects. I scanned in a bunch of photos at 300dpi, 100%. The scans were huge!! And when I bring them into Photoshop, they're at 72ppi. What is the difference between dpi and ppi, and is there a loss of quality now that the scans are at a lower resolution?

Thanks,
-artboy

[artboy]

Thanks Ian, that helps a lot. I'm still a bit confused about the whole scanner-thing, but I understand about Photoshop and my monitor resolution. Btw, the images are for an After Effects project for school. I guess I need to take a class on how to work my scanner!

-artboy