Experimental study of compressed images transmission through WSN

With the rapid development of Wireless Sensor Networks (WSNs), the latter is increasingly getting used in critical environments. Multimedia networked applications have become more and more feasible over WSNs. The development of these types of applications requires extensive knowledge of multimedia network tools. For example, there is some research that presents constraints exactly to the use of wireless sensor networks for transporting multimedia applications such as image, video, etc. Image compression is one such technology that has been developed to reduce image size and used by WSN applications. In this paper, we describe a robust use of DWT and DCT image compression algorithm. Our performance evaluation shows that the DWT transform is better than the DCT in terms of image quality and execution time but the DCT outperforms DWT in terms of memory space used.