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A Method for Predicting Spectrum of Exceeding Ink Quantity Limited Multi-Ink Sample Based on Cellular Neugebauer Spectral Model

A technology of ink volume limitation and model prediction, applied in copying/marking methods, special data processing applications, printing, etc., can solve problems such as ink overflow and predict the spectrum of multi-ink samples

Active Publication Date: 2015-12-23
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If this ink limit is exceeded, an ink spill will occur
So far, neither academia nor industry has a good way to predict the spectra of multi-ink samples beyond the ink limit

Method used

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  • A Method for Predicting Spectrum of Exceeding Ink Quantity Limited Multi-Ink Sample Based on Cellular Neugebauer Spectral Model
  • A Method for Predicting Spectrum of Exceeding Ink Quantity Limited Multi-Ink Sample Based on Cellular Neugebauer Spectral Model
  • A Method for Predicting Spectrum of Exceeding Ink Quantity Limited Multi-Ink Sample Based on Cellular Neugebauer Spectral Model

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Embodiment Construction

[0030] Taking a CMYKRG (cyan, magenta, yellow, black, red, green) six-ink printer as an example, the above method based on the Neugebauer spectral model to predict the spectrum of a multi-ink sample with excess ink limit is described.

[0031] Such as figure 1 As shown, the specific steps are as follows:

[0032] 1) Select 6 inks of a six-ink printer, each ink is divided into 4 levels (0%, 33%, 67%, 100%) on average from 0% (no ink) to 100% (maximum ink consumption), and the entire The ink space is divided into 3 6 =729 subspaces (also known as cells), each cell has 2 6 = 32 vertices (also known as cell base color). A total of 4 is required 6 =4096 cell primary colors to set up the cell formula Neugebauer spectrum model;

[0033] 2) Among the 4096 cell primary colors printed, the total amount of ink is less than the cell primary color limited by the printer's ink volume. For example, for a cell base color, its ink formula is (P 1 , P 2 , P 3 , P 4, P 5 , P 6 ), whe...

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Abstract

The invention discloses a method for predicting an excessive ink-limited multi-ink sample spectrum based on a cellular unit type Neugebauer spectrum model. The method comprises the steps of dividing an ink space of a whole multi-ink printer into a plurality of cellular units, printing and measuring that the total amount of ink is less than or equal to that of ink-limited cellular unit primary colors, achieving a purpose of predicting an excessive ink-limited cellular unit primary color spectrum through an under ink-limited cellular unit primary color measurement spectrum and a distance weighted basic Neugebauer spectrum model, and thus building a cellular unit type Neugebauer spectrum model, and realizing the predication of any ink formula (including excessive ink-limited multi-ink samples) spectrum. The method highly-efficiently and simply realizes the predication of the excessive ink-limited multi-ink sample spectrum and has strong practicability.

Description

technical field [0001] The invention relates to a spectral model of a printer, in particular to a method for predicting the spectrum of a multi-ink sample with excess ink quantity limitation based on a cell-type Neugebauer spectral model. Background technique [0002] With the development of science and technology, digital image devices such as printers have been widely used. While it is convenient for people to work and live, it also brings a series of problems such as color distortion. For example, the color output by the printer does not achieve the expected effect. Does not match the color on the monitor, etc. Therefore, how to realize the accurate reproduction of colors on different digital devices has become the focus of research in related fields, and a lot of research has been carried out at home and abroad. [0003] The characterization model of the device is the key technology to solve the problem of color distortion and the premise of realizing the accurate repro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41M5/00G06F19/00
Inventor 吴利庆
Owner STATE GRID CORP OF CHINA