Method and system for measuring color coordinates of color of cultural relics
A measurement method and technology of color coordinates, applied in the field of color coordinate measurement method and system of cultural relics color
Active Publication Date: 2021-05-07
TIANJIN UNIV
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, in many scenarios, especially in field measurement, it is difficult to meet the standard geometric conditions
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0067] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0068] As mentioned in the background art, in many scenarios, especially in field measurement, it is difficult to measure under standard geometric conditions. For example, in the study of the influence of natural conditions on the color paintings of the Summer Palace, when periodically testing the color coordinate changes at night, such as figure 1 as shown, figure 1 Schematic diagram of the on-site measurement environment for the Liujia Pavilion in the Sum...
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
Login to View More Abstract
The invention discloses a method and system for measuring the color coordinates of the color of cultural relics. When the environment of the cultural relics to be measured cannot meet the lighting angle required by the target standard geometric conditions, the color coordinates of the cultural relics to be measured can be measured within the preset lighting angle range. Measure the color coordinates of the cultural relic under at least three different lighting angles, and substitute the measured color coordinates into a preset calculation model to obtain an overdetermined equation about the color coordinates of the target standard geometric conditions, and then based on the overdetermined equation, Calculating the color coordinates of the cultural relic to be measured corresponding to the standard geometric conditions of the target, wherein the calculation model is a model matrix related to illumination angles and color coordinates established based on the standard geometric conditions of the target. It can be seen that through the technical solution of the present invention, in the measurement environment that cannot meet the lighting angle corresponding to the standard geometric condition of the target, the color coordinates of the cultural relics to be measured at the lighting angle corresponding to the standard geometric condition of the target can also be calculated and obtained through the measurement results of other lighting angles .
Description
technical field [0001] The present invention relates to the cross technical fields of cultural relics protection and chromaticity measurement, and more specifically, relates to a method and system for measuring the color coordinates of the color of cultural relics. Background technique [0002] Improving the accuracy of color measurement is one of the important directions in the field of color research. Geometric conditions, especially the lighting angle, will greatly affect the accuracy of color measurement during the measurement process. For standard colorimetric light sources, changes in the incident angle of light on a transparent colorless glass plate will result in changes in the color coordinates of reflected light. Reflected in the image color measurement, the image color depends largely on the geometric conditions and the spectral power distribution of the light source. Whether it is a small change in brightness or a change in the direction of the lighting, the mea...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/52G01J3/46G01N21/25
CPCG01J3/462G01J3/524G01N21/251
Inventor 党睿石睿琦
Owner TIANJIN UNIV