[HTML][HTML] A new auto-focus measure based on medium frequency discrete cosine transform filtering and discrete cosine transform

X Zhang, H Wu, Y Ma - Applied and Computational Harmonic Analysis, 2016 - Elsevier
This paper proposes a new auto-focus measure based on medium frequency discrete
cosine transform (MFDCT) filtering and the discrete cosine transform (DCT). First, the …

Fast approximate DCT with GPU implementation for image compression

RT Haweel, WS El-Kilani, HH Ramadan - Journal of Visual Communication …, 2016 - Elsevier
Recent developments in image and video processing employed in multimedia and
communication systems require fast 2-D Discrete Cosine Transforms (DCT). The DCT is …