Image processing apparatus, program, image forming apparatus, image forming method, and dither matrix

An image processing device and technology of dithering matrix, applied in the field of dithering matrix, can solve problems such as complicated process, achieve the effect of suppressing Moiré fringes, improving output image quality, and not reducing speed

Inactive Publication Date: 2009-02-04
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] In addition, the error diffusion method can also be used for false tone expression, but this method is extremely complicated compared with the dithering method

Method used

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  • Image processing apparatus, program, image forming apparatus, image forming method, and dither matrix
  • Image processing apparatus, program, image forming apparatus, image forming method, and dither matrix
  • Image processing apparatus, program, image forming apparatus, image forming method, and dither matrix

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Embodiment Construction

[0050] Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 3 describe an example of an imaging device according to the present invention. Note that FIGS. 1, 2, and 3 are a diagram showing the entire structure of the image forming apparatus, a plan view of its engine unit portion, and an enlarged front view of its engine unit portion, respectively.

[0051] The image forming apparatus includes an image forming section (device) 2 that forms an image, a sub-scan conveying section (device) 3, and the like inside an apparatus main body 1 (in a casing). In the image forming apparatus, a medium to be recorded (hereinafter will be referred to as “paper”, but its material is not limited to paper) 5 as a member to be conveyed is transferred from paper as a storage device provided at the bottom of the apparatus main body 1. The supply section (device) 4 is separated and supplied. Subsequently, as the paper 5 is periodically con...

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Abstract

The invention discloses an image process device, a program, an imageing device, an imaging method and a dither matrix. An organized dither matrix is composed of a main matrix having dispersibility and a sub-matrix having randomness, and the intensity of a frequency characteristic of an output image relatively increases from a low frequency component, through an intermediate frequency component, to a high frequency component in respective tone levels.

Description

technical field [0001] The present invention relates to an image processing device, a program, an imaging device, an imaging method, and a dithering matrix. Background technique [0002] Known image forming apparatuses, such as printers, facsimile machines, copiers, and multifunctional peripherals thereof Transmission media (hereinafter will be referred to as "paper", but not limited to this material and with "medium to be recorded", "recording medium" , "transfer material", "recording paper", etc. used synonymously) and has as a recording liquid (hereinafter also referred to as "ink") attached to the paper to perform image forming operations ("recording", "printing", and "photocopying" are also used synonymously), for example, using a liquid ejection device including a recording head consisting of a liquid ejection head ejecting recording liquid droplets. [0003] It should be noted that an imaging device refers to a device that sprays liquid onto a medium, such as paper, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/405B41J2/52G06T5/00
CPCH04N1/4051H04N1/4057H04N1/40087
Inventor 平野政德池贵广
Owner RICOH KK
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