VLSI ARCHITECTURE AND FPGA PROTOTYPING OF A DIGITAL CAMERA FOR IMAGE SECURITY AND AUTHENTICATIONWATERMARKING
the process that embeds data called a watermark, a tag, or label into a multimedia object such that the watermark can be detected or extracted later to make an assertion about the object. The object may be an image, audio, video, or text .In general, any watermarking scheme (algorithm) consists of three parts, such as the following:1) Watermark;2) Encoder (insertion algorithm);3) Decoder and Comparator (verification or extraction o ....etc

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Abstract:

Digital audio broadcasting, DAB, is the most fundamental advancement in radio technology since that introduction of FM stereo radio. It gives listeners interference - free reception of CD quality sound, easy to use radios, and the potential for wider listening choice through many additional stations and services.

DAB is a reliable multi service digital broadcasting system for reception by mobile, portable and fixed receivers with a simple, non-directional antenna. It can be operated at any frequency from 30 MHz ....etc

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Image Processing is processing of the image so as to reveal the inner details of the image for further investigation. With the advent of digital computers, Digital Image Processing has started revolutionizing the world with its diverse applications. The field of Image Processing continues, as it has since the early 1970â„¢s, on a path of dynamic growth in terms of popular and scientific interest and number of commercial applications. ....etc

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Digital Image Processing Techniques for the Detection and Removal of Cracks in Digitized Paintings
Abstract: An integrated methodology for the detection and removal of cracks on digitized paintings is presented in this project. The cracks are detected by threshold the output of the morphological top-hat transform. Afterward, the thin dark brush strokes which have been misidentified as cracks are removed using either a median radial basis function neural network on hue and saturation data or a semi-automatic procedure based on region growing. F ....etc

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hey guys i need to match sketch image to real photo. any idea about this. if anyone can provide a sample code or code in java would be better thank you. ....etc

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detailed working of a DIGITAL NOCTURNAL NUISANCE using logic gates ....etc

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APPLICATIONS OF DIGITAL OBJECT COUNTER USING LDR & IC 555 MONOSTABLE MULTIVIBRATOR ....etc

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hi....we want the project abstract of lcd based digital alarm clock with digital thermometer using 8051/89c51........ ....etc

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Digital-to-Analog Analog-to-Digital
Data Handling Systems
Both data about the physical world and control signals sent to interact with the physical world are typically analog or continuously varying quantities.
In order to use the power of digital electronics, one must convert from analog to digital form on the experimental measurement end and convert from digital to analog form on the control or output end of a laboratory system.
Digital-to-Analog Conversion
When data is in binary form, the 0's and 1's may be of s ....etc

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A/D and D/A Conversion,analog to digital and digital to analog


Data Converter impacts the factor for the performance of the overall radio design
Requirements: very high sampling rates, high number of effective quantization bits, an operating bandwidth of several Ghz, a large spurious-free dynamic range, a reasonable price
DAC and ADC converters
Sampling and Quantization
Nyquist Zones
Aliasing
Bandpass filtering – uses image to translate bandpass signals to baseband
Errors occurs in Quantization
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