Image Fusion is a technique which attempts to combine complimentary information from multiple images of the same scene so that the fused image is more suitable for computer processing tasks and human visual system. In this paper, a simple yet efficient real time image fusion algorithm is proposed considering human visual properties in spatial domain. The algorithm is computationally simple and implemented very easily in real-time applications. Experimental results highlights the expediency and suitability of the algorithm and efficiency is carried by the comparison made between proposed and existing algorithm. © Springer-Verlag Berlin Heidelberg 2010.