منابع مشابه
Special Eeects with Half-toning
Half-toning is the process by which gray-scale images are approximated with sets of black and white pixels. The process works because our eyes perceive a local average, thus half-toning seeks to approximate the local average. Ideally this approximation should be accomplished without introducingùndesirable' artifacts. In many situations the stylized display of images is desired. Often this styli...
متن کاملDesigning a half toning coprocessor
Halftoning is a fairly slow process when executed by software on conventional processors. To speed up halftoning, a halftoning algorithm has been developed and integrated into a dedicated hardware architecture. This paper describes the implementation of the architecture with a XILINX Field Programmable Gate Array (FPGA) and compares its performances with results obtained by a software implement...
متن کاملColored Noise Inversion in Digital Half toning
A new digital halftone resolution technique, based on a neural network with connection strengths derived from stochastic power spectra, is proposed. Ulichney's "blue noise" spectrum is used as a basis; alternative spectra are also examined. The new technique is compared with standard resolution techniques, ordered dither, Floyd-Steinberg, and dot diffusion. The new technique appears to offer re...
متن کاملA Half-toning Method based on Error Diffusion
In this paper, a new error diffusion approach is proposed that provides high quality ED results. The proposed error diffusion approach is based on half toning method, which is known as Floyd and Steinberg’s filter. The proposed method is faster than conventional methods.
متن کاملChanges in the lipid profile of blood serum in women taking sauna baths of various duration.
OBJECTIVES There is little information on lipid metabolism after sauna treatment in the literature. The present research is aimed to determine the influence of sauna baths on fat metabolism in young women. MATERIALS AND METHODS Twenty healthy, eumenhorreic, female volunteers (19-21 yr old) were exposed to Finnish sauna bath seven times every second day. In group I (n = 10) each time the sauna...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1884
ISSN: 0036-8733
DOI: 10.1038/scientificamerican12131884-7456bsupp