dithered

verb

1. 1.To tremble, shake, or shiver with cold.
2. 2.To be uncertain or unable to make a decision about doing something.
3. 3.To do something nervously.
4. 4.To render an approximation of (an image, etc.) by using dot patterns to approximate (the features of) colors not in the system palette.
5. 5.To intentionally add noise to a signal to randomize errors.