Method and apparatus for quantifying visual showthrough of printed images on the reverse of planar objects

Method and apparatus for quantifying visual showthrough of printed images on the reverse of planar objects

An image analysis method to quantify visual showthrough of printed images on the reverse face of planar objects, such as paper. An illumination level is set using a white reference object. A white reference image is stored in a computer memory. An image of a planar object having a printed image on t...

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Hauptverfasser: Browne, Richard Walker, Canning, Jr, Robert V, Evans, Michael H, Johnson, Robert William, Rubin, Barry, Stilwell, Douglas Ray
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Sprache:eng
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creator Browne, Richard Walker
Canning, Jr, Robert V
Evans, Michael H
Johnson, Robert William
Rubin, Barry
Stilwell, Douglas Ray
description An image analysis method to quantify visual showthrough of printed images on the reverse face of planar objects, such as paper. An illumination level is set using a white reference object. A white reference image is stored in a computer memory. An image of a planar object having a printed image on the reverse face is stored in a computer memory. A pixel by pixel ratio of the two images is calculated and a mean value of the ratios is calculated to characterize the visual showthrough. The measurements are substantially independent of both the illumination level and image shading.
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title Method and apparatus for quantifying visual showthrough of printed images on the reverse of planar objects
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