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Printer calibration algorithm based on characteristics of human eye

A technology of human eye characteristics and printers, which is applied in the direction of copying/marking methods, printing, spectrum investigation, etc., can solve problems such as not considering the characteristics of human eyes, and achieve high practical value, high precision, and simple application

Inactive Publication Date: 2013-04-24
廖达珍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are some studies on printer calibration, all printer calibration algorithms do not consider the characteristics of human eyes, and the printed colors are judged or appreciated by people. Therefore, a printer based on the characteristics of human eyes is proposed. Calibration algorithm is very necessary

Method used

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  • Printer calibration algorithm based on characteristics of human eye
  • Printer calibration algorithm based on characteristics of human eye
  • Printer calibration algorithm based on characteristics of human eye

Examples

Experimental program
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Embodiment Construction

[0021] Taking an HP Designjet1055CM four-ink CMYK (cyan magenta yellow-black) four-ink printer and an established Yule-Clapper spectral model based on the printer (hereinafter referred to as "the original YC model") as an example, the above-mentioned analysis based on the characteristics of the human eye The specific implementation of the printer calibration algorithm will be described. Such as figure 1 As shown, the specific steps are as follows:

[0022] 1) Select 40 calibration ink formulas that basically cover each color area, that is, the combination of CMYK ink consumption;

[0023] 2) Use the printer and paper used to build the original model to output the printed sample of the calibration ink formula, that is, the calibration sample, and place the calibration sample in the dark room for 1 hour to ensure that the ink is fully dry;

[0024] 3) Use a Datacolor650 spectrophotometer to measure all 40 calibration samples, and measure the corresponding measurement spectrum ...

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Abstract

The invention discloses a printer calibration algorithm based on characteristics of a human eye. The calibration algorithm provided by the invention comprises the following steps: obtaining a calibrated sample by printing calibration ink formulae; measuring the calibrated sample to obtain a measurement spectrum; and predicting a prediction spectrum of the calibration ink formula by using a former model, and calculating to obtain a calibration coefficient by combining a polynomial and the sum in all wavelengths of CIE standard 1964 color observer tristimulus-value functions representing the characteristics of the human eye, so that a printer is calibrated. The printer calibration algorithm provided by the invention has the advantages of being simple in application and high in precision, is applicable to calibrating various printer spectrum characteristic models, and has a very high practical value.

Description

technical field [0001] The invention relates to a printer calibration algorithm, in particular to a printer calibration algorithm based on the characteristics of human eyes. Background technique [0002] With the development of industrial technology, printers have been widely used in people's daily life. At the same time, a large number of scientific workers have carried out corresponding research on ink color management of printers. At present, a related research hotspot is the spectral characterization model of the printer, which can predict the spectral data after printing on a certain paper from the ink formula (ie, the amount of each ink). The existing printer spectral characterization models mainly include three-dimensional look-up table method, Yule-Clapper model and its improved model, Neugebauer model and its improved model, etc. [0003] As far as the current technology is concerned, at least thousands of samples need to be printed and measured to establish a hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/00G01J3/28
Inventor 岑夏凤
Owner 廖达珍