Image processing apparatus having unevenly gamut dividing color-converting function
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United States of America Patent
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Mar 11, 1997
Grant Date -
N/A
app pub date -
Oct 31, 1994
filing date -
Oct 30, 1993
priority date (Note) -
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Abstract
An uneven dividing unit unevenly divides an input gamut into divisions which have figures similar to one another. An output-value determining unit determines predetermined lattice-point output values relevant to the divisions. A division selecting unit selects a division among the divisions obtained through the uneven dividing unit, the selected division corresponding to given input color-image data. An interpolating unit interpolates final output values for the given input color-image data using the lattice-point output values relevant to the division selected through the division selecting unit. The uneven dividing performed by the uneven dividing unit is that eliminating lattice points, the lattice-point output values of which are not used in the interpolating performed by the interpolating unit.
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