grayscale image; greyscale image
Technical term used in image processing and computer graphics. Refers to an image where each pixel carries only intensity information, without color.
To convert this grayscale image to color, a special algorithm is needed.
A grayscale image is an image that, like a black-and-white photograph, carries no color information.
カラー画像 is a color image, while 濃淡画像 is a grayscale image without color information.
白黒画像 is a black-and-white image with only two tones, whereas 濃淡画像 includes multiple shades of gray.
Compound of 濃淡 (のうたん, 'shade; light and dark') and 画像 (がぞう, 'image').