Invention Grant
US08482793B2 Memory efficient electronic registration method that compensates image content and prevents halftone moiré 有权
内存高效的电子注册方法,可补偿图像内容并防止半色调莫尔

Memory efficient electronic registration method that compensates image content and prevents halftone moiré
Abstract:
Systems and methods are described that facilitate compensating for slow scan direction displacement (e.g., skew and/or bow) defects in a raster line using slow-scan electronic registration. Input image data is buffered at low-resolution (e.g., 600 spi or the like). Displacement compensation is performed as the low-resolution contone image data is converted to high-resolution (e.g., 2400 spi or the like), and a displaced (e.g., staggered) halftoning threshold array is indexed to account for detected displacement. Displacement compensation is again performed during conversion of the high-resolution contone image data to high-resolution binary image data that is used to generate an output image.
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