undertow_如何修复破坏大照片的Undertow

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Ever take one of those photos that’s great, except for a bunch of shadows that ruin the image? Here’s how to salvage that shot and bring the detail back out of those shadows in a few quick seconds.

曾经拍摄过其中一张很棒的照片，除了一堆阴影会破坏图像吗？ 这是挽救该镜头并在几秒钟内将细节从这些阴影中移出的方法。

With this Photoshop and GIMP friendly method, you can turn those frustrating “almost perfect” photos into great images. So, let’s dive in, and see what we can do about all those shadows. Keep reading!

使用这种Photoshop和GIMP友好方法，您可以将那些令人沮丧的“几乎完美”的照片变成精美的图像。 因此，让我们深入研究一下，看看如何对所有这些阴影进行处理。 继续阅读！

基本：调整图像中的所有阴影 (Basic: Adjusting all Shadows In an Image)

We’ll start with this image of this model. The highlights look very good, so simply adjusting the levels might cause us to lose some detail, so let’s adjust the shadows only.

我们将从此模型的图像开始。 高光看起来非常好，因此简单地调整级别可能会导致我们丢失一些细节，因此让我们仅调整阴影 。

For HTG readers that might have missed it, you can check out some great methods for adjusting contrast for this kind of image in our previous article, Learn to Adjust Contrast Like a Pro.

对于可能已经错过它的HTG读者，您可以在我们之前的文章学习像专业人士一样调节对比度中找到一些用于调节这种图像对比度的好方法 。

With your shadowed image loaded, press to select all of the image.

加载阴影图像后，按选择所有图像。

With the image selected, copy the image to your clipboard with a quick .

选择图像后，快速将图像复制到剪贴板。

Jump to your channels panel, as shown above left, and create a new channel by clicking the at the bottom of the panel.

跳到您的频道面板，如左上方所示，然后通过单击面板底部的来创建一个新频道。

Note: If your Alpha channel is black, as opposed to the white one in the example, you can double click it, and adjust it from “Masked Areas” to “Selected Areas” as shown above. If your Alpha channel is white, you don’t have to change anything.

注意：如果您的Alpha通道是黑色的，而不是本例中的白色通道，则可以双击它，然后将其从“屏蔽区域”调整为“选定区域”，如上所示。 如果您的Alpha通道为白色，则无需进行任何更改。

Paste the image into the new Alpha channel with a quick .

快速将图片粘贴到新的Alpha通道中。

to open the Levels tool. Adjust it similar to how it’s done in the image above, particularly adjusting white the highlights slider, blowing out your highlights entirely. Your image should look similar to the example. You want to leave heavy darks and lots of gray tones in your shadow areas, lightening them up considerably and pushing many of your highlights to pure white.

打开“色阶”工具。 对其进行调整，使其与上图中的操作类似，尤其是将高光滑块调整为白色，使高光完全消失。 您的图像应类似于示例。 您想在阴影区域留下沉重的黑暗和许多灰色调，以使其明亮化，并将许多高光推向纯白色。

When you’re satisfied, press OK to move on to the next step.

如果满意，请按OK继续进行下一步。

Hold and click the alpha channel to load the selection of the channel you just created. In the channels panel, you can click the RGB combined channel (shown above) to stop editing your Alpha channel and return to your photo.

按住并单击Alpha通道以加载刚刚创建的通道的选择。 在通道面板中，您可以单击RGB组合通道(如上所示)以停止编辑Alpha通道并返回到您的照片。

With your selection created, you should have your selection overlaid on your image as shown.

创建选择之后，应该如图所示将选择覆盖在图像上。

Load your Levels tool again with another and adjust it like you see above. Pay close attention to the histogram in the levels to see what adjustment will suit your photograph best. Press OK when you’re satisfied with your adjustment.

再次将您的“关卡”工具加载到另一个工具中，然后如上所示进行调整。 密切注意各个级别中的直方图 ，以查看哪种调整最适合您的照片。 对调整感到满意后，按确定。

And, without disturbing the tones in your highlight areas, you’ve adjusted the image and brought out detail in the heavy shadows.

而且，在不影响高光区域色调的情况下，您可以调整图像并在浓重的阴影中显示细节。

For those image editors wishing to remove or adjust only select shadows, keep reading—there’s an alternate method just ahead to do just that.

对于那些只希望删除或调整所选阴影的图像编辑器，请继续阅读-前面有另一种方法可以做到这一点。

高级：微调阴影 (Advanced: Fine Tuning Your Shadows)

Return to your adjusted Alpha 1 channel, which is still in your Channels Panel where you left it.

返回调整后的Alpha 1通道，该通道仍在您离开通道的面板中。

Grab the eraser or the paintbrush and remove everything you don’t want to adjust, as shown. Providing your channel was set to “Color Indicates: Selected Areas” as shown above, the white areas represent nothing, and all the blacks and grays represent your shadows.

如图所示，拿起橡皮擦或画笔，并删除所有不想调整的内容。 如上所示，将您的频道设置为“颜色表示：选定区域”，白色区域什么都不表示，所有黑色和灰色表示您的阴影。

You can create a rough or a rather sloppy selection as shown above; it’s entirely up to your preference.

您可以创建一个粗略或相当草率的选择，如上所述。 这完全取决于您的偏好。

Ctrl + Click the Alpha channel to load the selection, and then return to the RGB combined channel.

Ctrl +单击Alpha通道以加载选择，然后返回RGB组合通道。

Notice that your selection is now limited to whatever you decided to adjust. Use your levels tool again, and adjust your shadows again.

请注意，您的选择现在仅限于您决定调整的内容。 再次使用关卡工具，然后再次调整阴影。

And, there’s the result—the image with shadows adjusted only in the model, leaving the darks in the background untouched.

而且，结果就是-仅在模型中调整了阴影的图像，而使背景中的黑暗保持不变。

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Have questions or comments concerning Graphics, Photos, Filetypes, or Photoshop? Send your questions to [email protected], and they may be featured in a future How-To Geek Graphics article.

对图形，照片，文件类型或Photoshop有疑问或意见吗？ 将您的问题发送到[email protected] ，它们可能会在以后的How-To Geek Graphics文章中介绍。

Thanks to Guillaume Boppe for this image, available under Creative Commons.

感谢 Guillaume Boppe提供的图片，可在 创用CC下获得 。

翻译自: https://www.howtogeek.com/69929/how-to-lighten-the-shadows-that-ruin-great-photos/

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