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Curve Tutorial, Curve Basics for PS Universal Tools

作者:吃瘦不吃肉 学习: 2055人次 Source: psshu.com Author: eat lean meat without learning: 2055 visitors

@ 吃 瘦 不 吃肉: What I want to introduce is the use of the curve of the PS universal coloring tool, even if you have never touched the PS, even the three primary colors and the three primary colors have not heard.

There is no beginning, less nonsense, straight into the text: As we all know, many of the dense rows of PS buttons on the PS fainted and even started to retreat.

Curve Tutorial, Curve Basics for PS Universal Tools_psshu.com

   

Don't panic, the first thing I want to introduce today is the use of the curve of the PS universal coloring tool. It doesn't matter if you have never touched the PS or even the three primary colors and the three primary colors.

You can also learn to color quickly. At least after reading this tutorial, there should be no problem in frying eggs.

First familiarize yourself with color theory and the three primary colors of color:

RGB

Red, green, blue

曲线教程,PS万能工具之曲线基础篇_psshu.com
psshu.com

     

OK, now you have started quickly, what about the complementary colors of the three primary colors?

What is complementary color?

Curve Tutorial, Curve Basics for PS Universal Tools_psshu.com

emmm is the complementary color when two colors are mixed

The role of complementary colors

When a photo shows complementary colors, a strong contrast will appear, which will shock (exaggerated).

The following are the complementary colors of the three primary colors

Red-cyan

Green-magenta

Blue-yellow

     

曲线教程,PS万能工具之曲线基础篇_psshu.com

That is: the red complementary color is cyan

Green complementary color is magenta

The blue complementary color is yellow

曲线教程,PS万能工具之曲线基础篇_psshu.com

     

If you ca n’t remember it, you must think of a way to remember it. If you ca n’t remember, just look at this picture.

The easiest way is to use the reverse key in the PS layer and the shortcut key ctrl + i to know the complementary color of the color .

Curve Tutorial, Curve Basics for PS Universal Tools_psshu.com

🔺For example, if the complementary color of red is forgotten, then when we reverse it, 咦, it suddenly becomes cyan, and the complementary color of red is cyan.

Now that the good theoretical knowledge has been learned, we can enter the practical operation link.

Open PS, import a picture, shortcut cCTRL + O, take PS2019 startup picture as an example.

曲线教程,PS万能工具之曲线基础篇_psshu.com

After entering PS, we open the curve, there are two methods:

1. Image-Adjustment-Curve ( or shortcut key ctrl + M)

曲线教程,PS万能工具之曲线基础篇_psshu.com

2. Adjustment Layer-Curve

曲线教程,PS万能工具之曲线基础篇_psshu.com

       

What are the differences between the two opening curves?

是调出曲线了直接在原图上作修改,假设做错了, 是不可逆的 The first is to call up the curve and modify it directly on the original image. If you make a mistake, it is irreversible.

是直接在图层上放添加曲线的,做错了,可以直接删除曲线图层, 是可逆的 The second is to add curves directly to the layer. If you make a mistake, you can directly delete the curve layer, which is reversible .

Therefore, the second method is recommended.

OK, let ’s look at the curve. The curve is a line. In RGB mode, click the three points on the curve with the left mouse button to correspond to: shadow / dark, midtone, highlight / light.

Curve Tutorial, Curve Basics for PS Universal Tools_psshu.com

(降低暗部的亮度,黑的更黑) If the shadow is pulled down, the dark part is reduced (the brightness of the dark part is reduced , and the black is more black)

曲线教程,PS万能工具之曲线基础篇_psshu.com

             

(降低最亮部) If the highlight is pulled down, the brightest part is reduced (lower the brightest part)

Curve Tutorial, Curve Basics for PS Universal Tools_psshu.com

If the middle tone is pulled down, the overall brightness is reduced .

     

Curve Tutorial, Curve Basics for PS Universal Tools_psshu.com

Note: If you lower the shadows and highlights, it will increase the contrast of the photo. The entire photo has a strong black and white contrast, which has the effect of removing gray and fog. That is the S-shaped curve that people often say .

Curve Tutorial, Curve Basics for PS Universal Tools_psshu.com

     

🔺Small S-curve black, blacker, brighter, contrast

     

曲线教程,PS万能工具之曲线基础篇_psshu.com

Ebara

Conversely, if you increase the shadows to increase the brightness of the dark parts, the entire photo will become too gray, and the entire picture will become softer.

曲线教程,PS万能工具之曲线基础篇_psshu.com

如果高光拉的过于高,则亮部可能过曝。 🔺If the highlight is pulled too high, the highlights may be overexposed .

曲线教程,PS万能工具之曲线基础篇_psshu.com

  

Okay, I know the shadows and midtones of the curve.

At this time we switch RGB to one of red, green and blue to pull their highlights, shadows, and midtones. What effect will it have?

   

Curve Tutorial, Curve Basics for PS Universal Tools_psshu.com

 

The complementary color we just learned at the beginning is used at this time. We recall that the complementary color of red is cyan, the complementary color of green is magenta, and the complementary color of blue is yellow.

From this we can know that if we are in the red curve channel mode:

:无论是暗部亮部都是加红色 Pull up the curve : both the dark and bright parts are red

无论是暗部亮部都是加青色 Pull down the curve: both the dark and bright parts are cyan

Under the green channel curve:

Pull up the curve: both the dark and bright parts are green

无论暗部亮部都是加洋红 Downward curve: Magenta is added to both the dark and bright parts

Under the blue curve channel:

无论是暗部亮部都是加蓝色 Pull up the curve: both the dark part and the bright part are added blue

:无论暗部亮部都是加黄色 Pull down the curve : both the dark and bright parts are yellow

曲线教程,PS万能工具之曲线基础篇_psshu.com

      好的看了这个曲线图,我们实操以下。 After reading this graph well, let's do the following.

If we want to tone the dark part of the picture or the whole picture to a reddish color , what channel should our curve be in and how should we pull it?

曲线教程,PS万能工具之曲线基础篇_psshu.com

     

提高 Improve the curve under the red channel: increase red

If we want to remove the misty picture and change the sky to cyan at the same time , how should we adjust it?

曲线教程,PS万能工具之曲线基础篇_psshu.com

     

🔺In the red channel of the curve, pull down the curve: increase cyan

So what do we do if we want to make the figure's clothes a little red and turn the sky blue at the same time?

First we analyze the picture. Adding red to the clothes will increase the dark part of the red channel curve.

Increasing the sky blue will increase the bright part of the blue channel curve, while lowering the midtone of the red channel, and OK will work.

Isn't it easy to grade photos?

曲线教程,PS万能工具之曲线基础篇_psshu.com

     

So then finally, I made this picture like this, in the end I found that this hand seemed too red. It's as red as clothes. I want to reduce the redness of my arm without affecting the others. What should I do?

Analysis: People's arms are reddish because red is too much, and human skin color is composed of red and yellow, so we need to reduce red, and add a little yellow to balance it.

Very simple, so we first use the lock tool, shortcut key L, to circle the arm

Then feather down 0.5 pixels, feathering the shortcut key shift + F6, then use the curved red channel, the middle tone is lowered (red), the blue channel is lowered (add yellow, because the complementary color of blue is yellow)

OK.

Curve Tutorial, Curve Basics for PS Universal Tools_psshu.com

     

    

曲线教程,PS万能工具之曲线基础篇_psshu.com

Thanks for watching, graphic tutorial by: Weibo: @ 吃 瘦 不 吃肉, WeChat: Jianghan Chaozhong

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latest comment
2019-03-09 11:08 For whom does a woman make up _ 2019-03-09 11:08
Why lower red and add yellow? I still don't understand. Can you advise me?
  Reply
2019-03-05 02:04 Mengqipugong2019-03-05 02:04
not bad
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