 Digital radiography is a form of x-ray imaging, where digital x-ray sensors are used instead of traditional photographic film. Advantages include time efficiency through bypassing chemical processing and the ability to digitally transfer hand-in-hands images. Also, less radiation can be used to produce an image of similar contrast to conventional radiography. Instead of x-ray film, digital radiography uses a digital image capture device. This gives advantages of immediate image preview and availability, elimination of costly film processing steps, a wider dynamic range, which makes it more forgiving for over- and under-exposure, as well as the ability to apply special image processing techniques that enhance overall display quality of the image.