CONTROL DEVICE, IMAGE PROCESSING METHOD AND IMAGE PROCESSING PROGRAM

Japanese Patent JP2018042083

A

PROBLEM TO BE SOLVED: To improve color reproducibility even in a case where an input image has high saturation or high lightness.SOLUTION: When performing printing in which a white ground is imparted to a color input image, multi-value pixels of the input image and the white ground are generated and it is discriminated whether a color of the multi-level pixel of the input image is a predetermined color. Both a pixel value of each of color material colors of the input image and a pixel value of a white color of the ground are subtracted in such a manner that a total value of both the pixel values becomes equal to or less than a predetermined value. After a color material amount during the printing is limited, the pixels are transformed into a binary pixel array for each color material color using the area gradation method. Based on the binary pixel array that is obtained by transforming the multi-value pixels of the predetermined color, a pixel position at which any one of C, M and Y color components is present and a pixel position at which no color component is present are identified. At least one white pixel disposed at any one pixel position is rearranged at the other pixel position where a white pixel is not disposed, with respect to the white binary pixel array, and a result of the rearrangement is outputted.SELECTED DRAWING: Figure 6

HIRANO SACHIKO

JP2016174400A

March 15, 2018

September 07, 2016

Click for automatic bibliography generation  

KONICA MINOLTA INC

H04N1/46; B41J2/01; B41J2/21; B41J2/525; H04N1/60

JP2014216721A	2014-11-17
JP2014183335A	2014-09-29
JP2015064401A	2015-04-09

US20090033956A1

2009-02-05

Keiji Miyamoto

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