Image Lossless Compression and Secure Transmission System Based on Integer Wavelet Transform

Network is widely used in today. However, limit bandwidth and no security are the current network situation. Transmission of image data in Internet may be affected because of above shortcomings. On the one hand, transmission of important image data must be efficient and secure, such as, medical images, remote sensing image, and so on. On the other hand, large images data (TIFF, BMP, DCMOM), are applied in reality, which cause transmission difficult, or unavailable in Internet. Considering image transmission scheme, using FTP, QICQ, or email are the general tools, however, they can´t satisfy both high efficiency and secure during transmission. The proposed system achieves both of them. First, using Secure Socket Layer protects secure transmission. Secondly, before transmission, compressing image data after integer wavelet transformation increases efficiency of network bandwidth. Thirdly, the proposed system applies the database in order to support data management. At last, the system supplies previewing module by using open source CXIMAGE. The experiment used BMP, TIFF, and DCMOM format image. The experimental results show that the large images transmission could be high efficiency and security in the proposed system, the transmission time can save half than popular system. Meanwhile, it is easy for data management.