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Many electronic content providers today like Flickr and Google, offer space to users to publish their electronic media(e.g. photos and videos) in their cloud infrastructures so that they can be publicly accessed. Features like including other information, such as keywords or owner information into the digital material is already offered by existing providers. Despite the useful features made available...
This paper describes a comparative analysis between two topologies of operational amplifiers to design a 40 MS/s 12-bit pipeline analog to digital converter (ADC). The analysis includes AC and transient simulation to select the proper topology. This ADC is implemented in a 0.35 mum AMS CMOS technology with 3.3 V single power supply. The capacitors and selected operational amplifiers were scaled for...
This paper presents a novel robust image watermarking scheme for resisting geometric attacks. In the proposed scheme, watermark synchronization is first achieved by the local circular regions, which can be generated using the scale-invariant feature transform (SIFT). Then the watermark is embedded into each local region in spatial domain by odd-even quantization. In the decoder, the watermark can...
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