EFFICIENT LOSSLESS IMAGE COMPRESSION USING DPCM WITH NORMALIZED LMS ALGORITHM
Keywords:
Adaptive filter,DPCM, NLMS Algorithm,QuantizationAbstract
This paper proposes a novel image compression based on DPCM with Normalized LMS
algorithm. An image files hold some redundant and improper information. So an image
compression is used to reduce the amount of data required to represent an image. A proposed
technique is very easy to implement and reduce the complexity of memory. The Differential
Pulse Code Modulation (DPCM) is used to remove the unused bit in the image for
compression. The Normalized LMS algorithm is used to adapt the coefficient of an adaptive
prediction filter for image source coding. In this paper we compare the compressed image for
1,2,3,4 bits and evaluate the performance metrics (compression ratio, PSNR, MSE) for
reconstructed image.