- In digital imaging, or picture element is a physical point in a raster image or the smallest addressable element in display devices.
- Each pixel is a sample of an original image,if number of pixels increses then quality of the original image will be increased.
- In each pixel color is typically represented by three or four component intensities such as red, green, and blue, or cyan, magenta, yellow, and black.
- Resolution is expressed in pixels with width to height ratio.
