Highlights are the brightest elements in an image; shadows are the darkest parts.

(1) - indicates the highlight areas of the images. In a color image, look for the lightest colors. In a grayscale image, look for the lightest gray or white areas.

(2) - indicates the shadow areas of the images. In a color image, look for the darkest colors. In a grayscale image, look for the darkest gray or black areas.