Written in Ecmascript 6 and uses the traceur compiler. However these can be compiled into static javascript.
Bilateral Filter:
check out html/bilateralTest.html for the code example
Gaussian Blur:
check out html/gaussianBlurTest.html for the code example
Sobel Filter:
An Edge Detector. check out html/sobelTest.html for the code example
Hough Filter:
A line detector. check out html/houghTest.html for the code example