One of the image tinkers
Making the image look natural is the basic principle of color correction. However, this is easier said than done. If you do not understand the principle of printing, this requirement is often difficult to achieve. It is common to see that some inexperienced designers are very careful to use photoshop to work in front of the screen and spend a lot of time thinking that they will get the ideal picture. However, the result of printing is disappointing. It is a pity.
The reason for this is that designers rely on screen effects to judge the color of a print. Almost all screens have their own color cast, but only to a certain extent. Looking at the same photo with different screens often has different effects. And the screen is a kind of light source. If you look at it for a long time, the human eye will have a natural adjustment effect and adapt to the color cast of the screen. The color judgment will lose its objectivity, resulting in inconsistent results of color correction. Therefore, the screen is not an ideal tool for judging the color of printing.
To master the professional color correction skills, the first is to understand the principle of printing, know the color dot combination, and at the same time know how to read the image of the dot data. In this way, it will not be confused by the screen. Even if another screen is changed for work, a consistent and ideal color correction effect will also be obtained.
Before correcting color pictures, the first thing to do is to make correct color judgments. The basis for judgment is the gray balance of printing. The part that appears to be neutral grey on the screen, if it is not gray, is a picture that looks like a biased image. How to predict the result before the picture is printed and predict what color it will be is what designers need to master. There is no mystery about this kind of knowledge. If you understand the principle and practice, you will be able to master it.
In theory, the same amount of CMY (cyan, magenta, yellow) inks can be mixed to produce a neutral gray. (In other words, 50C+50M+50Y can produce 50% gray). However, the ink in the real world is limited by the industrial production conditions. The color rendering capability of CMY is not the same. Among them, the color rendering power of magenta is the strongest, and the color rendering power of blue is the weakest. Therefore, the same amount of CMY ink will not be produced. Neutral gray (will be reddish gray), in order to get neutral gray, must increase the proportion of blue (C) ink weight, which is the basic principle of Grey Balance.
For example, to produce 50% neutral gray, the proportion of green is 13% more than that of magenta, and the proportion of magenta and yellow ink may be about the same. If 30% of neutral gray is to be produced, it is required to have 9% more than magenta. . Different levels of neutral gray, magenta, and blue may also have different mixing ratios. In the light gray part, be especially careful because the human eye is most sensitive to light-colored color casts. The proportions of cyan and magenta in different situations may refer to the attached table. Note that the numbers here are only a reference. Actually different brand inks can make the ratio of outlets 2% to 5%. It's best to compare with your printing company. They provide different proportions of green and magenta mixed neutral gray for your reference. This will make the judgment more accurate.
With the neutral grey dot data, it is equivalent to having a reference color scale, and it is convenient to judge the image color cast. As long as the neutral gray part of the image is found, the ratio of the dot is displayed in the photoshop using the color picking tool. If the reading obtained is in agreement with the standard, it can be concluded that the figure has no color cast, otherwise it will be based on exceeding or Lower than the standard part, to make corrections to the image.
Eyebrow pencil is a kind of eyebrow ink products, which is used for eyebrow shaping. The purpose is to use a razor, tweezers, etc. to reshape the eyebrows, and then use the eyebrow pencil to draw the desired shape to make the eyebrows thick and bright.
Eyebrow pencil is a kind of eyebrow ink, and it is also the most commonly used eyebrow ink product. Its refill is made of pigments dispersed in a low-melting oil and wax base, kneaded, and then made into a pen. Usually it is a paper refill, a wooden pencil type or a mechanical pencil type eyebrow pencil.
The colors of eyebrow pencils are usually brown, black, gray, brown, etc. According to the skin color and hair color, different shades can be selected.
The properties of a good eyebrow pencil
1. It is soft to the skin and adheres evenly
2. Can draw thin lines with sharp outlines
3. High retention, makeup is not easy to be scattered
4. Good stability, no sweating, no powder, not easy to be broken and scattered
5. Waterproof, long-lasting color fixation without losing makeup
6. High security
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