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EDMA (Enhanced Direct memory access) is an important method to transmit data in Digital Signal Processer (DSP) for high speed and real-time processing of digital signal, such as digital image processing, radar signal recognition. However existing DMAs do not use data pre-computation and they are incapable of satisfying the increasing demands of signal processing, target recognition or scientific computing applications. In this paper, we propose a new enhanced DMA design with data pre-computing for digital image processing, which provides more efficient data transfers in modern DSP by integrating several useful arithmetic units for data preprocessing. In comparison to traditional EDMA, the proposed design reduces the DSP’s burden of simple calculations and increases the efficiency of data transmission for improved performance..