Printing Error
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منابع مشابه
Digital Printing of Digital Materials
We present a printer that builds functional three-dimensional structures by reversible assembly of a discrete set of components, “digital materials”. This approach uses the components rather than a control system to impose the spatial and functional constraints. Printing can be performed as a parallel rather than a linear process. The printing process is reversible for re-use of the pieces or f...
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The focus of this study is on development of mathematical model and experimental verification of a tension estimation using the register error in R2R (Roll to Roll) e-Printing systems. In a printing section of conventional R2R printing systems, the tension is generally measured not for controlling but for monitoring because the tension control causes the occurrence of a register error. But the ...
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Error-diffusion is widely used to generate intensity levels between the primary levels of multi-level colour printing devices (ink-jet printers, electrophotographic printers). Standard error-diffusion algorithms produce structure artifacts at rational intensity levels such as 1/3, 1/2 and 2/3. The boundary between structure artifacts breaks the visual continuity in regions of low intensity grad...
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Error Diffusion is a common halftoning algorithm that converts a contone input image signal into a binary or multi-level output signal for printing and display. Different methods exist to expand error diffusion to color, ranging from a purely scalar approach, all the way to vector error diffusion. This paper describes an intermediate approach that maintains some of the positive aspects of vecto...
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watermarking, digital security, halftone printing, printing security, error diffusion This report analyzes watermark embedding in Error Diffusion halftone images. A distortion measure for halftone modifications is introduced, and an embedding scheme is selected so as to minimize the proposed distortion. Next a statistical model is suggested for “natural-images”, leading to a lower bound on the ...
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