v2.2.1

fixed on_finish param - it will be optional.

v2.2

updated image data updated image data split for multicore function. split for multicore function.

v2.1

• added ability to resize image easily (not only canvas)
• worker code combined into main code

v2.0

• added stable web workers with transferable objects.
• more speed- single cpu version 20%, multi-cpu version - 80% faster
• code optimization
• better structure
• demo

v1.0

First stable version.