Method for reproducing colors from display to projector by utilizing human eyes

A color reproduction and projector technology, applied in the field of color management system, can solve the problems of color mismatch, inconvenient measurement, low color reproduction accuracy, etc., and achieve the effect of low cost and simple method

Inactive Publication Date: 2010-06-02
YUNNAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the color mismatch between the computer-controlled projector and the display, and the inconvenience caused by the international use of instrument measurement, and the general user requires low color reproductio...

Method used

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  • Method for reproducing colors from display to projector by utilizing human eyes
  • Method for reproducing colors from display to projector by utilizing human eyes
  • Method for reproducing colors from display to projector by utilizing human eyes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Use the "dark environment", the color block background is "gray", and set the white point and gamma of the monitor and the projector to be 9300K and 2.0 respectively.

[0058] Implementation equipment SONY CPD-G52021" CRT display and SONY VPL-CX5LCD projector. Using 30 test samples equally spaced in the RGB color space, the display is directly displayed on the projector, and the average color difference between the two is 16.8 CIELAB color difference units; Using this method for 9 color matching, the average color difference between the two is 3.5 CIELAB color difference units. At the same time, using visual evaluation, 30 test samples using this method have an improvement rate of 87.5% compared with the display directly to the projector.

Embodiment 2

[0060] The same as in Example 1. The difference is that the color matching and color reproduction environment becomes an "office environment".

Embodiment 3

[0062] The same as in Example 1. The difference is that the color matching color block background is set to "white".

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Abstract

The invention discloses a method for reproducing colors from a display to a projector by utilizing human eyes, which is a new technical method for a color management system, and belongs to the filed of color science and technology. The technical method that the traditional color management system is required to be measured by an instrument is changed, and a method of direct human eye visual matching of 6 to 9 pieces of colors of the display and the projector is adopted; and according to known white points and gamma values respectively set in the display and the projector, and a defaulted display characteristic linear matrix, a projector color characteristic linear matrix is calculated. Through the known and acquired characteristic parameter matrixes of the display and the projector, the display color of the display is converted to the projection color of the projector so as to realize the reproduction of the color from the display to the projector. The method has the advantages of simpleness and convenience, and low cost, and can be applied to common users with not high requirement on color reproduction accuracy.

Description

Technical field: [0001] The present invention proposes a method for realizing color reproduction from a display to a projector by human eyes, which is a new technical method of a color management system, and belongs to the field of color science and technology. Background technique: [0002] With the popularization of the use of computers, electronic slides made with computers have become common tools for people in all walks of life, such as teaching and conferences. In practice, it is found that there is a gap between the colors projected by the projector on the screen and the colors displayed on the monitor, or even a very large gap, which changes with the life of the projector. Need to use color management system to achieve color reproduction. [0003] Commonly used digital color devices include cameras, scanners, monitors, printers, and projectors. Color Management System (CMS) is a management software that converts the color space of one input device into the color space of ...

Claims

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Application Information

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IPC IPC(8): H04N9/67H04N9/73
Inventor 石俊生韩卫军贺萍余鸿飞云利军
Owner YUNNAN NORMAL UNIV
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