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本文以辽宁工程技术大学校园网络的研究与设计为实例,探讨了建立校园网络过程中的若干环节,并给出了一定的原则与方法。 相似文献
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In this paper we propse a semi-fragile watermarking scheme,which can be used for image authentication.Let the original image be performed by l-level discrete wavelet transformation.An approximate wavelet coefficient matrix of the original image and real-value chaotic sequences are than used to generate the content-based and secure watermark.The watermark is embedded into original image by using by using HVS.The tamper detection can idantify the tampered region of the received watermarked image,Experimental results are given. 相似文献
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