Understanding Resolution: Pixels, DPI, and Megapixels

Resolution refers to the number of pixels that are used to display an image or video on a screen. It is measured in pixels per inch (PPI) or pixels per inch (DPI). The higher the resolution, the more detailed and sharper the image will appear.

For example, a monitor with a resolution of 1920x1080 (also known as 1080p) has a total of 1,920,000 pixels (1920 x 1080) that are used to display an image or video. A higher resolution such as 3840x2160 (also known as 4K) has a total of 8,294,400 pixels (3840 x 2160), which provides a much more detailed and sharper image.

In addition to monitors, resolution is also used to describe the resolution of digital cameras, smartphone cameras, and other devices that capture or display images. In these cases, the resolution is typically measured in megapixels (MP), where one megapixel is equal to one million pixels. For example, a camera with a resolution of 12 MP can capture an image with 12,000,000 pixels.

Overall, resolution is an important factor in determining the quality and detail of an image or video, and it is used in a wide range of applications, from monitors and cameras to smartphones and televisions.