Printing apparatus, printing method, image processing apparatus, image processing method

Abstract

The present invention provides a new printing device a printing process and an image processing device, an image processing program, an image processing method and a recording medium recording the program. The printing device 100 using the print head 200 having many nozzles calculates the concentration sum total value of each pixel domain after the image data of many tones are partitioned into the pixel domains, computes dots designed in the pixel domains from the concentration sum total value, to arrange the dots in a concentrated state. Thereby, high definition printed matter can be obtained certainly since a banding phenomenon by a flight deflection phenomenon, etc. can be eliminated or hardly conspicuous.

Description

technical field [0001] The present invention relates to a printing device such as a facsimile device, a copying machine, a printer of an OA machine, and the like, and particularly relates to a so-called inkjet inkjet inkjet inkjet inkjet inkjet inkjet inkjet inkjet inkjet system for printing predetermined characters or images on a printing paper (recording material). A printing device, a printing program, a printing method, an image processing device, an image processing program, an image processing method, and a storage medium storing the above-mentioned program are suitable for ink-based printing processing. Background technique [0002] Next, a printing device, particularly an inkjet printer (hereinafter referred to as an "inkjet printer") will be described. [0003] Inkjet printers are generally cheap and can easily obtain high-quality color prints. Therefore, with the spread of personal computers and digital cameras, they have spread not only in offices but to general u...

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Problems solved by technology

[0013] However, in the aforementioned prior art, although the streaking phenomenon can be reduced in the high-density portion, it is generally difficult to reduce the streaking phenomenon in the medium-density portion or the low-density portion where the streaking phenomenon is conspicuous.

In addition, since the concentration of dots in the middle density part or the low density part is very obvious, the effect of graininess may be obvious and the image quality will be reduced.

[0014] In addition, in the dithering process, since the density value of the input image is generally set to be started / stopped by the threshold value of the dithering matrix, sometimes the input density value and the output density value are inconsistent, and there will be special gradation. Characteristics of poor gray scale reproducibility

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