Ravi Namballa

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Watermarking is the process that embeds data called a watermark, tag or label into a multimedia object, such as images, video or text for their copyright protection. According to human perception, the digital watermarks can either be visible or invisible. A visible watermark is a secondary translucent image overlaid into the primary image and appears(More)
Digital watermarking is the process that embeds data called a watermark into a multimedia object such that the watermark can be detected or extracted later to make an assertion about the object. Several software implementations of the proposed algorithms are available, but very few attempts have been made for hardware implementation. The goal of hardware(More)
Watermarking is the process that embeds data called a watermark into a multimedia object for its copyright protection. The digital watermarks can be visible to a viewer on careful inspection or completely invisible and cannot be easily recovered without an appropriate decoding mechanism. Digital image watermarking is a computationally intensive task and can(More)
The first step in high level synthesis consists of translating a behavioural specification into its corresponding register transfer language (RTL) description. Behavioural specifications are composed by writing code in a hardware description language such as VHDL. The process of translation starts by first deriving a control and data flow graph (CDFG) from(More)
In this paper, a new tool CHESS, is designed and developed for control and data-flow graph (CDFG) extraction and the high level synthesis of low power designs from behavioral level VHDL descriptions. The tool optimizes latency, area and power during the different phases of synthesis and provides several solutions to evaluate the trade-offs during design.(More)
This paper describes an object-oriented simulation approach for the design of a flexible manufacturing system that allows the implementation of control logic during the system design phase. The object-oriented design approach is built around the formal theory of supervisory control based on Finite Automata. The formalism is used to capture inter-object(More)
Watermarking is the process that embeds data called a watermark, a tag, or a label into a multimedia object, such as images, video, or text, for their copyright protection. According to human perception, the digital watermarks can either be visible or invisible. A visible watermark is a secondary translucent image overlaid into the primary image and appears(More)
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