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With the Internet's rapid development, government agencies and other private companies are setting up websites for providing information and marketing. However, computer viruses and hackers are omnipresent on Internet. The injection attacks grew exponentially recently. SQL Injection, ASP Injection, PHP Injection are methods of attacks used. The nation's(More)
In this paper we propose a new watermark technique which combines bit rotation, codebook and coordinate plane division for gray-level image. We embedded binary watermark into the gray-level image successfully by selecting and rotating the pixel bits, classifying codebook and dividing the coordinate plane. Besides that to achieve more robustness, parameter(More)
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