title: How can I perform in-browser contrast stretching/normalization?
body: <p>I have jpegs on a webpage. I would like to perform client-side equalization (contrast stretching) on these images without browser plugins. I would also accept a solution for histogram equalization.</p>
  
  <p>I currently use a poor approximation with a combination of two CSS filters (-webkit-filter: contrast() brightness()).</p>
  
  <p>I am hoping to be able to accomplish this with something like processing.js or pixastic.</p>