Bit Depth Optimization In DCT-IV for Extended JPEG

  title={Bit Depth Optimization In DCT-IV for Extended JPEG},
  author={Raviprakash Dewangan and Pradeep Kumar},
A discrete cosine transform (DCT) expresses a finite sequence of data points in terms of a sum of cosine functions oscillating at different frequencies. DCTs are vital to varied applications in science and engineering, from lossy compression of audio (e.g. MP3) and images (e.g. JPEG) (where small high-frequency components can be discarded to spectral ways for the numerical answer of partial differential equations. The modified discrete cosine transform (MDCT) is a lapped transform based on the… CONTINUE READING