如何辨别色彩失真
How to distinguish color distortion
对色彩失真的主要因素有了了解后，在实际生产过程中如何发现色彩失真才是关键。
After understanding the main factors of color distortion, how to find color distortion in the actual production process is the key.
1、首印象基准法
1. First impression benchmark method
人的眼睛对色彩具有一定的适应性。对于色彩轻微失真的图像，反复观察会减弱识别的能力。
Human eyes have certain adaptability to color. For images with slight color distortion, repeated observation will weaken the ability of recognition.
因此，在判断是否存在色彩失真时，利用一眼的印象来排除人眼颜色视觉的局限性是发现色彩失真的重要方法。
Therefore, when judging whether there is color distortion, using one eye impression to eliminate the limitations of human color vision is an important method to find color distortion.
2、中性色基准法
2. Neutral color reference method
生活中有许多中性色彩，如黑色、白色、灰色等，它们是缤纷世界中颜色的零点，我们可以作为辨别色彩失真的基点。
There are many neutral colors in life, such as black, white, gray and so on. They are the zero point of color in the colorful world. We can use them as the basic point to distinguish color distortion.
3、肤色基准法
3. Skin color reference method
皮肤的颜色是人们熟悉的色彩，凡是人物图像，尤其是以人物肖像为主的画面，都可以根据皮肤的颜色作为辨别色彩失真的依据。
The color of skin is a familiar color. All character images, especially those based on portrait, can be used as the basis to distinguish color distortion according to the color of skin.
无论黄皮肤、白皮肤或黑皮肤，其肤色都有一个规律，那就是都是血色。即：黄中有红、白里透红或黑中泛红，如果图像中人物肤色偏黄就会给人产生病态的感觉。
Whether yellow skin, white skin or black skin, there is a law of skin color, that is, blood color. That is: red in yellow, red in white or red in black. If the skin color of the characters in the image is yellow, it will give people a morbid feeling.
在正常情况下，即使图像中人物皮肤的颜色真的偏黄，在彩色校正时也要调整为血色，即黄中有红。
Under normal circumstances, even if the skin color of the person in the image is really yellow, it should also be adjusted to blood color during color correction, that is, there is red in yellow.
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