Resolution
Image resolution is typically described in PPI, which refers to how many pixels are displayed per inch of an image. Higher resolutions mean that there more pixels per inch (PPI), resulting in a high-quality image. Images with lower resolutions have fewer pixels, and if those few pixels are too large (usually when an image is stretched), they can become visible like the image below.
An image that is 2048 pixels in width and 1536 pixels in height has a total of 2048×1536 = 3,145,728 pixels or 3.1 megapixels. One could refer to it as 2048 by 1536 or a 3.1-megapixel image. The image would be a very low quality image (72ppi) if printed at about 28.5 inches wide, but a very good quality (300ppi) image if printed at about 7 inches wide.
In class we often create projects that are 8.5 inches x 11 inches with a resolution of 150.
Those dimensions in pixels are 1270 pixels x 1650 pixels by 150 resolution.
In class we often create projects that are 8.5 inches x 11 inches with a resolution of 150.
Those dimensions in pixels are 1270 pixels x 1650 pixels by 150 resolution.