Study of image sonification based on gray variable

In the sonification research areas, multi-dimensional mapping of continuous data become the focus of current research, it is difficult to solve. Sonification research on one-dimensional data or discrete signals are now doing more. For the multi-dimensional signal, the choice of mapping variable should be very careful because of its need to find a suitable intermediate mapping variables. Few people involved in the in this area and also very little literature can be found. In this paper, we choice two-dimensional signal (Medical Images) and select gray as an intermediate mapping variables to study on Two-dimensional images.