Topic summary
Grayscale image
Extracted from the Wikipedia article Grayscale.
Grayscale images, are black-and-white or graymonochrome - composed exclusively of shades of gray. The contrast ranges from black at the weakest intensity to white at the strongest. Grayscale images are distinct from one-bit bi-tonal black-and-white images, which, in the context of computer imaging, are images with only two colors: black and white (also called bilevel or binary images). Grayscale images have many shades of gray in between.