Dither Images for E-Paper Displays in JavaScript – EPD Optimize
A JavaScript library that reduces, tone-maps, and dithers images for color e-paper displays using calibrated palettes in browser or Node.js.
JavaScript & CSS image process
Client Side Image Processing Library – imazing
imazing is a multifunctional JavaScript library for client-side image processing that features Histogram, Grayscale, Inverse Color, Brightness, Flip, Crop and more.