from absolute black to absolute white. Typically, non-color
televisions are referred to as "black and white
", but actually (especially to geek
s) they are grayscale, since the pixel
s can be an analog
value of brightness
somewhere on the range from black to white.
Grayscale is more often used as a term to refer to computer imagery containing no color, but containing at least some levels of gray. However, a strictly two-color-only black and white image is not considered grayscale.
Approximately 30% of the time, this term is (acceptably) spelled as 'greyscale'.