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In the modern era of health care and medical diagnostics, medical image contents are needed to be transported through the internet, in a safe and secured way, within time. Image compression is a process of reducing the size of an image without affecting the quality. Image compression reduces the size and helps in quick transportation. Digital watermarking is a process of embedding some secret data in an image for copyright protection, authentication, and channel reliability detection, done without affecting its look. In this work, vector quantization based compression technique is used. It follows LBG clustering algorithm. For watermarking, DCT-DWT based embedding and extraction technique is adopted. At first, retina image was compressed and BPP, S NR, MS E, PS NR values were compared, before and after compression. Later, a binary EPR logo image was embedded into compressed and uncompressed images. Correlation values of original watermark and extracted watermark images were computed and compared for further study.

With the advent of the information age, e-commerce has become the hottest business trend. It offers convenience to the business organization as well as the customers. It provides affordability, anywhere, anytime service, opting to choose a wide variety of products online etc. to the customers. At the same time, business organizations acquire wider market opportunities and can reach new customers more easily. With e-commerce, more and more organizations have an online business model. They are able to offer their products directly to the customers without the brokers. The revenue of such organizations has increased many folds. But with the rise of e-commerce, security has become a critical concern. As the number of e-commerce users has increased around the world, so have the security breaches. Credit card theft, hacking, computer systems remotely, etc. is not uncommon. This research paper will focus on the growth of ecommerce in the Indian market and the security perception from both customer and organizational perspective.

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