dither vs mob rule

dither

verb
  • To render an approximation of (an image or graphic) by using dot patterns to simulate the appearance of colors or shades not in the system palette. 

  • To be uncertain or unable to make a decision about doing something. 

  • To tremble, shake, or shiver with cold. 

  • To intentionally add noise to a signal to randomize errors. 

  • To do something nervously. 

noun
  • A form of noise which is intentionally applied to randomize errors which occur in the processing of both digital audio and digital video data. 

  • The use of dot patterns to approximate colors not available in the palette. 

  • The state of being undecided. 

mob rule

noun
  • Government by violent gangs, or by the masses. 

How often have the words dither and mob rule occurred in a corpus of books? (source: Google Ngram Viewer )