Enhanced EZW Technique for Compression of Image by Setting Detail Retaining Pass Number

For keeping the data secured and maintained, compression is most essential aspect. For which efficiency is the important part to be researched continuously until the satisfactory result is achieved. The optimized ratio of data is necessary for compression and embedded transmission. In this paper the main objective is to improve the execution time evolved in EZW coding. EZW coding mainly depends upon it’s transmitting and encoding time. In this we use descendant scanning of zero tree roots. By assuming most of the coefficient value in the decomposed subband near to zero, we try to improve the execution time. The proposed coding scheme is not only reduce the execution time but also improve the compression ratio. By estimating the threshold value we can choose the detail retaining pass number (DRP). The proposed coding will enhance the function of many processors like mobile, which works on multimedia processing and applications.