Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Table-printing machine system and method with halftone monocoloure treatment

A printing machine and half-tone technology, applied in printing and other fields, can solve problems such as ink waste, inability to obtain printing grayscale values ​​and re-projection errors, and affecting printing quality

Inactive Publication Date: 2005-10-05
SUNPLUS TECH CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional error diffusion system architecture does not take into account the characteristics of the actual output device, such as the size and shape of inkjet ink dots, which will not only cause ink waste, but also fail to obtain accurate printing grayscale values ​​and re-projection errors. affect the print quality
Therefore, the halftone monochrome processing method of known printing machine system still has many deficiencies and has the necessity of being improved.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Table-printing machine system and method with halftone monocoloure treatment
  • Table-printing machine system and method with halftone monocoloure treatment
  • Table-printing machine system and method with halftone monocoloure treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] FIG. 4 shows a block diagram of a printer system with halftone monochrome processing according to the present invention. The image 440 printed by the printer system is composed of a two-dimensional array of pixels 450, wherein the pixels (i, j) 450 is the pixel at column i and row j of the image 440 . The pixels marked B1, B2, B3 and B4 are previously processed pixel values, and their relative positional relationship with the pixel (i, j) is shown in FIG. 4 .

[0028] The printer system includes an updating device 400 , a threshold device 410 , an error determining device 420 and a filtering device 430 . The first input terminal of the update device 400 is used to receive the value P(i, j) of the pixel (i, j) to be printed sent by the printer system (that is, the pixel value currently processed), and its second The input end is used to receive a feedback error signal to correct pixels (i, j+1), (i+1, j-1), (i+1, j), (i+1, j+1) value. In this embodiment, after the pix...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides a table printer system with halftone monochrome processing function and its method. Said column-printed image is formed from a two-dimensional array of pixels, and these pixels are arranged according to several column directions. Said table printed system includes the following components: an adder, a crilial value device and an energy decision device. Said invention also provides the concrete action of the said every component and concrete steps of said invented method.

Description

technical field [0001] The invention relates to the technical field of printers, in particular to a printer system and method with halftone monochrome processing. Background technique [0002] In the practice of printing with a printer, due to the low resolution of the human eye, if a group of dots are densely arranged on a small area, the human eye can no longer distinguish the difference between individual dots, but can only feel the difference. The average reflectance formed by these dots as a whole, so as long as the density of these dots is controlled, different gray scales can be formed during the printing process. Generally, a half-tone technique is used to determine the positions of individual points in the clustered dots, so as to achieve a preset gray scale and reduce the unpleasant phenomenon in the picture. There are two methods of halftone technology: dithering and error diffusion. [0003] The main meaning of the Dithering method is to represent different gra...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B41J2/01
Inventor 何文政
Owner SUNPLUS TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com