有很多产品声称可以快速为您提供珍珠般洁白的牙齿。大多数人在照片中首先看到的就是我们的笑容，所以很多人都想拥有一个漂亮的笑容。然而，没有什么比简单地对自己或他人的照片进行照片处理更快的了。(photoshopping)这样做非常容易。
在本文中，您将找到在肖像照片中美白牙齿以及使其看起来自然的步骤。牙齿(Too)太白会使图片看起来很假，所以最好了解Photoshop中可用的牙齿美白技术。
在 Photoshop 中使用色相和饱和度美白牙齿(Whiten Teeth in Photoshop With Hue & Saturation)
在Photoshop(Photoshop)中美白牙齿的最佳方法是在图像上使用色相(Hue)和饱和度(Saturation)调整图层。这使得不仅可以为一个人，也可以为多个人（如果需要）轻松美白牙齿。您需要分别选择和美白多人的牙齿，因为一个人可能需要与另一个人不同的调整。
- 在Photoshop(Photoshop)中 打开您的图像并放大您想要美白的牙齿。然后，从工具栏中选择套索工具。(Lasso)使用它，您将只想围绕主题的牙齿进行选择，如下所示：
如果您发现很难做出干净的选择，请不要太担心，因为您可以稍后进行清理。
- 在图层面板(layer panel)的底部，找到半亮半暗的圆形图标。这是创建新的填充或调整(Create a new fill or adjustment)选项。选择色相和饱和度(Hue & Saturation)调整。您会在图层面板中看到一个新的调整图层。
- 在Hue & Saturation属性面板中，找到选择为Master的下拉菜单。此下拉菜单选择您将要处理的选择中的颜色通道。在这种情况下，您需要选择黄色(Yellow)通道。接下来，您将要查看饱和度(Saturation)滑块，然后将其调低，直到看不到太多黄色为止。
- 此时，您可能还希望美白牙齿，因为这可以帮助您照片中的笑容更加突出。将颜色通道下拉菜单更改回Master。然后，使用亮度(Lightness)滑块并将其调高，以使牙齿看起来更亮。
清理边缘(Clean Up Edges)
您可能会发现很难精确选择牙齿。这是因为一些调整层的变化也会影响牙齿周围的区域。但是，您可以轻松地清理它。
选择画笔工具，并确保您的前景画笔颜色设置为黑色。这是因为使用Photoshop 的(Photoshop’s)调整图层，您还可以使用图层蒙版来隐藏或显示部分调整。通过使用画笔，您可以将调整的任何部分涂成黑色，然后将其涂回白色。
因此，在这种情况下，您需要使用黑色在您不希望受调整图层影响的区域上进行绘制。如果你犯了一个错误，你总是可以将你的前景色换成白色来重新绘制一个区域。
在 Photoshop 中为多个主题美白牙齿(Whitening Teeth in Photoshop for Multiple Subjects)
在某些照片中，您可能有不止一个人想要美白牙齿。在这种情况下，最好为这个人创建另一个单独的调整图层。
- 在创建第二个（或更多）调整图层之前，您需要再次选择套索(Lasso)工具并确保您选择了背景图像图层。然后，您可以像第一次那样围绕下一个人的牙齿进行选择。
- 做出选择后，您可以像以前一样转到创建新的填充或调整(Create a new fill or adjustment)图标，然后选择色相和饱和度(Hue & Saturation)。然后，您可以像以前一样美白这个人的牙齿。如果您需要美白多人的牙齿，您可以根据需要添加任意数量的调整图层。
如果您想在添加调整之前查看原始图像，可以在图层面板中选择调整图层左侧的眼睛图标以查看原始图像。
让牙齿看起来自然洁白(Making Teeth Look Naturally White)
在Photoshop(Photoshop)中使用色相(Hue)和饱和度(Saturation)美白牙齿时，您需要记住一些事项，以免过度美白和增亮。这样做会使图片看起来太不自然。
在使用饱和度滑块去除牙齿上的黄色色调时，您需要记住所有牙齿自然都有点黄色。去除所有黄色痕迹会使微笑看起来有点奇怪。因此，请寻求更微妙的效果，以免使修饰已变得明显。
美白牙齿时也是如此。您不希望它们看起来白得令人眼花缭乱（除非您要这样做），所以在更改亮度滑块时再次保持更微妙的水平。
How to Whiten Teeth in Photoshop
There arе a lot of рroducts out there that claim to be quick-acting in giving you рearly white teeth. With our smilеѕ being what most people look to first in a photo, a lot of people want tо have a nice one. Yet there’s nothing faster to achiеve this than simply photoshopping pictures of yourself or others. And it’s extremely easy to do so.
In this article you’ll find steps to whiten teeth in portrait photographs, as well as making it look natural. Too white of teeth can make a picture look fake, so it’s good to know the techniques available to whiten teeth in Photoshop.
Whiten Teeth in Photoshop With Hue & Saturation
The best way to whiten teeth in Photoshop is through using the Hue & Saturation adjustment layer on your image. This makes it easy to whiten teeth not only for one person, but multiple people if need be. You’ll want to select and whiten multiple people’s teeth separately, as one person may need different adjustments than another.
- Open your image in Photoshop and zoom in on the teeth you want to whiten. Then, select the Lasso tool from the tool bar. Using this, you’ll want to make a selection around only the teeth of your subject, like so:
If you’re finding it difficult to make a clean selection, don’t worry too much as you can clean it up later on.
- At the bottom of the layer panel, find the circle icon that appears half light and half dark. This is the Create a new fill or adjustment option. Select the Hue & Saturation adjustment. You’ll see a new adjustment layer appear in the layer panel.
- In the Hue & Saturation properties panel, find the dropdown that is selected as Master. This dropdown chooses what color channel in your selection you’ll be manipulating. In this case, you’ll want to choose the Yellow channel. Next you’ll want to look at the Saturation slider, and turn it down until there isn’t as much yellow visible.
- You’ll also probably want to brighten the whitened teeth at this point, as this can help the smile in your photograph stand out even more. Change the color channel dropdown back to Master. Then, use the Lightness slider and turn it up in order to make the teeth appear more bright.
Clean Up Edges
You may find it difficult to precisely make a selection of the teeth. This is because some of the adjustment layer changes also affect areas around the teeth. However, you can clean this up easily.
Choose the brush tool, and make sure that your foreground brush color is set to black. This is because with Photoshop’s adjustment layers, you can also use layer masking to hide or show parts of the adjustment. By using the brush, you can paint black to erase any part of the adjustment, and white to paint it back.
So, in this case, you’ll want to use black to paint over the areas you don’t want affected by the adjustment layer. If you make a mistake, you can always swap your foreground color to white to re-paint an area.
Whitening Teeth in Photoshop for Multiple Subjects
In some photos you may have more than one person whose teeth you want to whiten. The best thing to do in this case to create another, separate adjustment layer for this person.
- Before creating the second (or more) adjustment layer, you’ll want to select the Lasso tool again and make sure you have the background image layer selected. Then, you can make a selection around the next person’s teeth like you did the first time.
- Once the selection has been made, you can go to the Create a new fill or adjustment icon like before, and select Hue & Saturation. Then, you can whiten this person’s teeth the same way as earlier. You can add as many adjustment layers as you wish if you need to whiten the teeth of multiple people.
If you want to look at the original image before you added the adjustments, you can select on the eye icon on the left side of the adjustment layers in the layer panel in order to look at the original.
Making Teeth Look Naturally White
When using Hue & Saturation to whiten teeth in Photoshop, you’ll want to keep a few things in mind in order to not over-do the whitening and brightening. Doing so can make a picture look too unnatural.
While removing the yellow hues from the teeth with the saturation slider, you’ll want to remember that all teeth are naturally a little bit yellow. Removing all traces of yellow can cause a smile to look a little odd. So, go for a more subtle effect so as to not make it obvious that touch-ups have been made.
The same goes when you’re brightening teeth. You don’t want them to look blindingly white (unless that’s what you’re going for), so again, stick to a more subtle level when changing the lightness slider.
