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This paper presents a detailed description of a vision system developed to detect and locate the nonuniformities that appear on the web offset printing machine. Specifically, the system is capable of monitoring the high-speed web offset printing in a real time environment and alerting the operator of any events (e.g., structural faults, color variations, missing characters, ink splashes, streaks, etc.) that disrupt the uniformities in the web offset printing. Such events are thought to affect crucial printing properties, resulting in non-uniformities in printing and impacting its quality and printability. This paper describes the vision system in terms of its hardware modules, as well as the image processing algorithms that it utilizes to scan the color images and locate areas of defect from the printing web. Basically, the system utilizes high-speed image scanning algorithms to detect edges and boundaries using linear and non-linear filters of dynamic size, threshold and transformation for further analysis. In addition to being tested in a laboratory environment, a prototype of this system was constructed and deployed to a web printing system, where its performance was evaluated under realistic conditions. The system was installed on a Flexo gravure-print-press machine for testing, and it was found that the vision system was able to successfully monitor and detect nonuniformities.

In this paper a new method is proposed to reduce power and area of the array multiplier. In the proposed method vector merging final adder is removed at final stage of the multiplier, at the final stage the generated carry is given to the input of the column of top adder. The adders also do the same what the vector merging final adder can do. The method is applied for array multiplier and column bypassing multiplier (CBM). The results are carried out by H-Spice with different TSMC (Standard and PTM) technology files at a supply voltage 2.0V. Array multiplier has shown 13.91% and Proposed Column Bypassing Multiplier (PCBM) shown 23.38% less power consumption for 180nm CMOS technology than the conventional array multiplier and CBM. 14-T full adder is used to design the multipliers. Due to elimination of the final adder proposed method saves 56 transistors and cause low area. Embedded, DSP General Terms

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