Adobe Photoshop :: Pixel dimensions


	Pixel dimensions Hi, In image size dialog box you have a value called pixel dimensions. What is it and how is it calculated and what is it used for? Help says pixel dimensions equal document size times resolution, but this does not make sense to me. Thanks, Martti Pixel dimensions means the number of dots in the picture. A dot will be the smallest element in a picture (one color, with one RGB setting). A 300x300 image will have 90000 pixels. If you print it at 300 dpi, then you will have a one inch square image. But if you use it on the web with a monitor that shows 75 ppi, then it will be four inches by four inches. -----------------------------------------------Reply----------------------------------------------- Martti, A pixel is a PIcture ELement. The smallest part of an image. Zoom in to the maximum value of 1600% and you'll see them. A pixel can contain only colour information, no surface detail. Think of it as an embroidery. If you come up too close you'll see the elements that make up a picture, but "zooming in" further reveals no details. A digital image may, for instance, be 1200 x 800 pixels. Those are the pixel dimensions. Rob