Image processing apparatus that generates halftone image data and image processing method
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United States of America Patent
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Jun 18, 2019
Grant Date -
Jan 11, 2018
app pub date -
Jun 22, 2017
filing date -
Jul 11, 2016
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Abstract
In order to implement preferred sharpness recovery processing for an image, an image processing apparatus which generates, based on input image data, halftone image data used for an image forming process of forming an image on a print medium. The apparatus converts the input image data into color material amount data used for the image forming process; performs, on the color material amount data, gamma correction to compensate for non-linearity of an input/output density in the image forming process; performs, on the color material amount data after the gamma correction, recovery processing to compensate for sharpness degradation of an image formed by the image forming process; and performs halftone processing on the color material amount data after the recovery processing to generate halftone image data.
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