Human eye, as the oldest color measurement tool, people have long been used to using visual comparison method to identify product color quality, but the evaluation results of visual method are often subject to subjectivity. The difference of visual characteristics of human eye color, the fatigue state of eyes during measurement, psychological factors will affect people's judgment of color. In addition, the influencing factors of environment make people's judgment of color more unstable.
We often say that "seeing is believing, hearing is false". In life, we prefer to believe what we see with our own eyes, but is "seeing" necessarily true?
Next, let's look at a group of interesting visual phenomena:
Are the balls the same color?
Is the color of a and B the same in the figure below?
If your answers are yes or no,
So,
Congratulations, you're wrong
In fact, their colors are the same
We have seen a lot of pictures like this in our life, but we will be "fooled" every time we see them. Why on earth is this?
Some people believe that this optical illusion is caused by the fact that the human retina is composed of many small photosensitive nerve cells. It is impossible to activate a single cell. The activation of a cell will always affect adjacent cells. Scientists have found that when stimulating a cell to get a larger response, and then stimulating its adjacent cells, the response will be weakened. That is, the surrounding cells inhibit its response. This phenomenon is called "lateral inhibition".
Others believe that our eyes cannot perceive such differences, but lead to visual illusions in brain processing.
In fact, what everyone sees is actually a product made by their own perception system. As an input instrument of our human body, the eye is easily affected by the surrounding environment of the product when comparing and analyzing the color of the product through the human eye. For example, the surrounding environment is too bright and there are other colors nearby. Plus other auditory, tactile and rational When these variables are added up, the final output must be very different.
But each of us is not aware of this, so in the textile printing and dyeing industry, people often make different judgments on the same physical color, resulting in the color can not be transmitted and unified more effectively, which is also a common problem to be solved in printing and dyeing enterprises.
With people's higher and higher requirements for color, the most basic instrument for color measurement, spectrophotometer, has gradually replaced human eyes and is widely used in the process of color production.
It is undoubtedly a more scientific and objective method to evaluate the color difference with the spectrophotometer. Generally, when the color difference value is large, the visual difference is very large, and the data measured by the colorimeter will also be very different. When the color difference value is small, the eyes can't see the color difference, but the color meter can measure the specific difference to help people judge the color.
Xiaomeng intelligent mobile colorimeter is a spectrophotometer specially used in the garment textile printing and dyeing industry. It provides enterprise users with color digitization solutions and carries out color measurement and quality control in the whole process of color from creativity to production. Ensure the consistency and accuracy of color evaluation at all ends of garment and textile supply chain. At present, Xiaomeng intelligent mobile colorimeter has obtained a number of national patents.
【The main function of Xiaomeng】
1. Color digitization
Fabric reflectance data can be measured anytime and anywhere to help enterprises receive orders quickly and realize more efficient color production.
2. Intelligent color matching
Xiaomeng intelligent mobile colorimeter can quickly measure the color and obtain the recommended formula meeting the requirements of color difference, light source and fastness by cooperating with various software of mengke, and automatically calculate and modify the formula or color according to mengke algorithm.
3. Color difference evaluation
Color differences between two or more samples can be compared. After testing and inputting the data of standard sample and comparison sample, the color difference value of sample quality inspection can be obtained, and then the measured color difference data can be displayed or shared through the screen.
4. Homochromatic heterospectral calculation
The calculation can be carried out under 2 light sources or 3 light sources at the same time. A variety of CIE standard illuminants and light sources (D65 / CWF / A / tl83 / ledt8g, etc.) are available.
5. Color management and quality control
Through Xiaomeng intelligent mobile color meter, we can measure and accumulate the color data of each link / batch of production, and improve the color production efficiency and product qualification rate through analysis and optimization.
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