Simple example to show a comparison JS/WASM implementations for a Sobel filter.
Compile change.c with emscripten using:
emcc -o change.js change.c -lm -O3 -s WASM=1 -s EXPORTED_FUNCTIONS="['_change']" -s BINARYEN_IMPRECISE=1
Original Sobel algorithm created by Miguel Mota, and adapted for this demo under the terms of the original license.