How is the total pixel count of an image typically measured?

The total pixel count of an image is typically measured in megapixels because this unit refers to one million pixels. Megapixels provide a straightforward way to quantify and compare the resolution of digital images. For instance, an image that is 3000 pixels wide and 2000 pixels tall has a total pixel count of 6 million, which translates to 6 megapixels.

This measurement is essential for evaluating the image quality and detail. Higher megapixel counts generally mean that an image can contain more detail and can be printed at larger sizes without losing clarity. In contrast, while dots per inch (DPI) is a measurement related to print quality, it doesn't provide a direct measure of the total number of pixels in the image. Similarly, pixels per foot and bits do not effectively represent the overall pixel count of an image.