International Journal of Engineering and Technology

Modern Digital world is mainly concerned with storage space and bandwidth utilization. Digital images requires huge amount of storage space in uncompressed form and require large bandwidth for transmission over the network. As a result of growing demand for effective utilization of storage space and bandwidth many efficient image compression techniques were developed. The Internal details of an opaque body can be obtained by using electromagnetic radiations like X-rays other than visible light and images obtained by this way are called Radiographic images. In this paper a comprehensive survey of performance of various image compression software are presented and performance is evaluated based on Compression Ratio (CR), Relative Data redundancy and Compression Ratio per byte and Entropy. Based on the experimental results, PAQ8pxd method has a good performance when compared with other image compression software.