DCT and Quantization are the first two steps in JPEG compression standard. This article demonstrates how DCT and Quantizing stages can be implemented to run faster using Intel® Cilk™ Plus.
In the first part of this epic we investigated the substance of the issue and promised to build a
Up to now I’ve tried to put across the fundamental principles of video encoding methods “in hand-waving terms” (I’ve hardly got any more hands to wave now).
It would be difficult to name an area of science that didn’t apply a Fourier transform somewhere. Fourier’s genius discovered a unique instrument linking the continuous and discrete worlds.
Until now we have discussed only one aspect of video encoding, namely how to eliminate time redundancy.