Image processing apparatus and image processing method
AssigneeFuji Xerox Co., Ltd.
InventorYasuo Komatsu
Life of this patent
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Abstract
An image processing apparatus for converting a multiple gradation image into a binary or multivalue image by use of an area gradation method according to a screen cell, which includes: a receiving unit that receives an input pixel value of each pixel of the multiple gradation image and position information on the screen cell; and an output unit that outputs an output pixel value, which is increased or decreased with an increase in the input pixel value, at a pixel position on the screen cell corresponding to the position information, according to the input pixel value and the position information received by the receiving unit.
Claims10
An image processing apparatus for converting a multiple gradation image into a binary or multivalue image by use of an area gradation method according to a screen cell, comprising:
- a receiving unit that receives an input pixel value of each pixel of the multiple gradation image and position information on the screen cell;
- and
- an output unit that outputs an output pixel value, which is increased or decreased with an increase in the input pixel value, at a pixel position on the screen cell corresponding to the position information, according to the input pixel value and the position information received by the receiving unit.
An image processing method which converts a multiple gradation image into a binary or multivalue image by use of an area gradation method according to a screen cell, comprising:
- receiving an input pixel value of each pixel of the multiple gradation image and position information on the screen cell;
- and
- outputting an output pixel value which is increased or decreased with an increase in the input pixel value at a pixel position on the screen cell corresponding to the position information, according to the received input pixel value and the position information.
Dependencies are inferred from the claim text.