dithering vs video digitizing

dithering and video digitizing both are nouns.

Word	Noun	Adjective	Verb	Adverb
dithering	Yes	No	No	No
video digitizing	Yes	No	No	No

As nouns, video digitizing is a hypernym of dithering; that is, video digitizing is a word with a broader meaning than dithering:

dithering: the process of representing intermediate colors by patterns of tiny colored dots that simulate the desired color
video digitizing: the process of capturing and converting and storing video images for use by a computer

dithering (noun)	video digitizing (noun)
the process of representing intermediate colors by patterns of tiny colored dots that simulate the desired color	the process of capturing and converting and storing video images for use by a computer