pixel

In digital imaging, a pixel, pel, or picture element is the smallest addressable element in a raster image, or the smallest addressable element in an all points addressable display device; so it is the smallest controllable element of a picture represented on the screen. Each pixel is a sample of an original image; more samples typically provide more accurate representations of the original. The intensity of each pixel is variable. In color imaging systems, a color is typically represented by three or four component intensities such as red, green, and blue, or cyan, magenta, yellow, and black. In some contexts, pixel refers to a single scalar element of a multi-component representation, while in yet other contexts it may refer to a set of component intensities for a spatial position.

Read more in the app

NASA Used a 2 Megapixel Camera to Capture This 1.6 Billion Pixel Panorama of Mars' Surface

41-Million-Pixel Vertex Locator May Unlock Some of the Most Enduring Mysteries of the Universe

Successful Installation of the CMS Pixel Tracker at the Large Hadron Collider

NASA's Mars rover shares new 2.4 billion-pixel, 360-degree panoramic image from Jezero

Samsung pushes pixel size even further with new camera sensor