best grey scales james heal
For Assessing Colour and Staining
There are two types of Grey Scale (Gray Scale) – one for assessing ‘colour change’ and one for assessing ‘staining’.
In digital photography, computer-generated imagery, and colorimetry, a grayscale image is one in which the value of each pixel is a single sample representing only an amount of light; that is, it carries only intensity information. Grayscale images, a kind of black-and-white or gray monochrome, are composed exclusively of shades of gray. The contrast ranges from black at the weakest intensity to white at the strongest.