Integer DCT-based image coding

DCT-based image/video coding is still popular now. In this paper, a novel embedded image coding schemes based on integer reversible DCT is proposed. It integrates lossy and lossless coding schemes perfectly. The transform is implemented by factoring the float DCT transform matrix into a series of integer reversible transform matrices. We apply the series of matrices to image samples, and encode the coefficients by several effective coding algorithms. Our simulation results show that the integer DCT coding method is superior to the float DCT coding method for lossless coding, and the performs are close for lossy coding.EI