A pixel is the smallest discrete 2D display element in a given image or display. Commonly, pixels can have up to 32 bits of colour information per pixel, which can represent up to 2^32 = 4,294,967,296 discrete colours. Note that other colour depths are possible, all the way down to a single bit per colour (representing a simple on/off state, used in monochrome displays).

For best visual quality, a computer should output an image with a resolution equal to the native resolution of the display. Some computer monitors can scale lower or higher resolution images to fit the display, by using hardware-based scaling algorithms.

In digital imaging, a pixel is a physical point in a raster image, or the smallest, controllable element of a picture represented on the screen. The address of a pixel mostly corresponds to its physical X and Y coordinates.

Each pixel is a color sample of the original image. In color image systems, a color is typically represented by three or four color component or channels such as red/green/blue (RGB) or cyan/magenta/yellow/black (CMYK). A extra channel of transparency (alpha) may be added.

A pixel is the smallest discrete 2D display element in a given image or display. Commonly, pixels can have up to 32 bits of colour information per pixel, which can represent up to 2^32 = 4,294,967,296 discrete colours. Note that other colour depths are possible, all the way down to a single bit per colour (representing a simple on/off state, used in monochrome displays).

For best visual quality, a computer should output an image with a resolution equal to the native resolution of the display. Some computer monitors can scale lower or higher resolution images to fit the display, by using hardware-based scaling algorithms.