DefinePK

Abstract

Uncompressed videos fetched from video cameras generally takes huge disk space approx 18MB per second. When these uncompressed videos are required to be shared over internet it would take huge time to upload or download. To overcome these situation videos need to be compressed so that it can be digitally distributed. This process is also known as transcoding. In the event of transcoding it is essential to ensure the quality of the video is not compromised and overall size of the video is reduced. Transcoding or compression is the process of segregating the video in to digital tracks, decoding the individual tracks to eliminate the high RGB and redundant pixels. In the existing paper video compression was tested using DCT (discrete cosine transformation), However there are few know issues on DCT such as artifacts blocking. In this paper testing is performed using DWT (discrete wavelet transformation) and there by the input coding is not overlapped by another 2-D blocks. In the proposed work PSNR value is improved when compared to the existing work.