Fork of Mozilla's JPEG2000 decoder from PDF.js adding support for 16 bit signed grayscale images found in the medical domain.
jpxImage.parse(jpxData);
var width = jpxImage.width;
var height = jpxImage.height;
var pixelData = tileComponents.items;
With jpxData an Uint8Array containing the jp2 stream and pixelData the decoded to an Int16Array image.