A new transform coder for gray scale images using 4×44×4 MRT

The demand for high-speed transmission of best quality images over the internet has led to a strong need for the development of better algorithm for coding images. The transform coders are highly popular in encoding images. M-dimensional real transform (MRT) gives an alternate representation of a signal in the frequency domain which involves only real addition. In this paper a new transform coder based on 4×44×4 MRT is proposed and its performance is analyzed for all types of grayscale images.