![]() When in print, the pixels are little ‘dots’ inked by the printer, so DPI is more accurate. When the image is on a screen, the correct term is PPI. These two measurements mean almost the same thing, though there is a subtle distinction between them. How tightly packed the pixels are packed gets measured in DPI (dots per inch) or PPI (pixels per inch). While a rectangle might consist of 7.2 MP, that number doesn’t tell us anything about how tightly those pixels are packed. ![]() Pixel density refers to the number of pixels in a given area. Pixel DensityĪnother essential concept when learning how to resize an image in Photoshop is the pixel density of a picture. While pixel counts get referenced often, they do not provide the whole story when it comes to resolution. The 7.2 MP is the resolution for the picture in question. In practice, this number gets written as 7.2 Megapixels (7.2 MP). Pixel counts multiply the width by the height of a picture. When you hear about resolution in normal conversation (and camera marketing), it is usually about how many of these little tiles exist in a photo. The concept of pixels is not unlike the idea of many small tiles or stones in a mosaic. These are like little square tiles that make up your photo. ![]() The first thing to understand is that a digital image contains many pixels. ![]() Before we talk about enlarging images in Adobe Photoshop (rights reserved), we’ll have to get a solid understanding of resolution. One of the most misunderstood concepts among designers and photographers is resolution. What is Resolution, and Why Does It Matter? Changing the size of an image in Adobe Photoshop is simple, but you need to take additional steps to preserve the image without losing quality when you make it larger or smaller.
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