100:00:02,190 --> 00:00:05,505By th

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By their nature, older images tend to need a little bit more tender loving care

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when you're applying your adjustments. In this case, for example, I have an

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image that is a little bit washed out and lacking in contrast.

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Instead of using brightness contrast however I'm going to use levels to apply

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an overall brightness and contrast adjustment.

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And the reason for that is that the levels adjustment allows me to work on

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the highlights and the shadows separately.

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I can adjust the white point to determine how bright the brightest areas of the

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photo will be separate from the black point which determines how dark the

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darkest values of the image will be. Let's take a look at how the levels

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adjustment works. I'll start off by adding an adjustment

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layer for levels, and so I'll go to the bottom of the layers panel and click on

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the Add Adjustment Layer button, the half black half white circle icon and from the

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pop up menu I'll choose Levels. That will add a levels adjustment layer

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and as you can see I now have the adjustment controls available to me on

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the properties panel. Just by looking at the histogram on the

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properties panel, we can see that overall contrast is actually reasonably good.

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There aren't any pixels that are pure white.

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You can see there's a little bit of a gap between the histogram and the edge of the

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display nor are there pixels that are completely black.

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We have a little bit of a gap on the left hand side as well.

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We can also tell from the histogram that most of the information is shifted toward

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the brighter values. Most of the pixels in the image are

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brighter than middle gray, and that's why we have this overall sort of washed out

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appearance in the photo. So while generally we have good contrast,

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when it comes to those values that are a little bit brighter than the midtones

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there's not much contrast at all. And it looks like in this case that was

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in large part due to haze in the environment.

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I'll start off by adjusting the black point and the white point for the photo.

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I'll adjust the white point first. And by clicking and dragging the white

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slider over at the right underneath the histogram, I can adjust the brightness of

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the brightest values. I'm establishing a white point.

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So if I move this slider further and further to the left I'll be making more

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and more pixels appear as pure white with no detail whatsoever.

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At the moment, for example, you can see that any pixel that has a brightness

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value that's just a little bit darker than middle gray will become pure white.

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And that happens to be most of the pixels in the image.

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I'll go ahead and bring that white point back out toward the edge of the histogram.

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And in most cases, that's exactly what we're going to want to do, is move the

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white point, and for that matter the black point, right up to the end of the

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histogram itself. Of course we can make a more informed

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decision about where to adjust the white point and the black point by holding down

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the Alt key on Windows or the Option key on Macintosh.

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When you hold the Alt or Option key and then adjust the white point, for example,

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you'll see in indication, a very clear indication of which pixels are losing

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detail, based on that white point adjustment.

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And in most cases, you'll want to bring the white point slider over to the left

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until you see some pixels appear. And then you'll want to move over to the

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right just to the point where the last of those pixels disappear.

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That's not going to be true for every single image but in most cases that

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approach will serve you well. I'll perform the same basic adjustment

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for the black point. I'll hold the Alt or Option key and click

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and drag the black point over to the right until I start to see pixels

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appearing and then I'll move back over to the left until the last of those pixels disappear.

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And that indicates that I'm enhancing contrast in the photo, but not

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sacrificing any white or black pixels in the process.

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Notice by the way, that the adjustment for the white point was a little bit

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stronger, than the adjustment for the black point.

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And that's one of the advantages of using levels, rather than brightness contrast.

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We can adjust the whites and the blacks separately with different values for each.

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In some cases you might also want to tone down the value of white.

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In other words, to have the white point in the image not actually appear as white

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but rather as a relatively bright shade of grey.

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In this image for example, I could take the output slider, the white value for

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output, over to the left. That's the white slider underneath the

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gradient here, and you'll notice that this causes the brightest values in the

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image to be darkened up a little bit. You'll want to be very careful if you're

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toning down the whites or toning down the blacks in the image because it can create

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a very muddy appearance very, very quickly.

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But in this case I think a minor adjustment of that white point, so that

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we have little bit more density in the brightest areas of the image, will

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actually prove helpful. Finally, now that I've adjusted the

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overall contrast in the image I can adjust overall brightness.

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For that, I'll move the midtone slider, the gray slider, underneath the histogram.

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Moving to the left will brighten the image and moving to the right will darken

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the image. And in this case I want a little bit more

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density, I don't want the image to appear too dark, but I want to be able to make

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out a little bit more of the texture. So I'm going to darken up those midtones

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just a little bit, trying to balance the adjustment between the foreground areas

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here, which have good density at the moment, and the background areas which

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are a little bit lacking. But again, that's mostly due to haze.

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So I'm not going to eliminate the appearance of haze.

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I just want to try to tone it down a little bit with my overall tonal adjustments.

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So as you can see, the levels adjustment gives us a little bit more control

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compared to the brightness contrast adjustment, which can be very helpful in

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improving the overall luminance values in our photos.

結果 (中文) 1:

100:00:02，190--> 00:00:05，505由于其性质，较早的映像，往往需要多一点的温柔呵护200:00:05，505--> 00:00:10，567当你申请你的调整。在这种情况下，例如，我有300:00:10，567--> 00:00:15，380有点被淘汰的形象和缺乏与之相反。400:00:15，380--> 00:00:19，215而不使用亮度对比度，不过我要去使用级别应用500:00:19，215--> 00:00:22，760整体的亮度和对比度调整。600:00:22，760--> 00:00:25，760原因就是色阶调整可以让我在工作700:00:25，760--> 00:00:28，920高光和阴影分开。800:00:28，920--> 00:00:31，975我可以调整白色的点以确定如何亮最亮区900:00:31，975--> 00:00:34，842照片将分离出来的黑点，确定多么黑暗1000:00:34，842--> 00:00:39，634将黑暗值的图像。让我们看看如何水平1100:00:39，634--> 00:00:43，050调整工作。我想先通过添加调整1200:00:43，050--> 00:00:46，200层的水平，和我会去的层面板底部，单击1300:00:46，200--> 00:00:49，650添加调整图层按钮，半黑半白圈图标和从1400:00:49，650--> 00:00:55，599弹出菜单会选择水平。这将添加一个色阶调整层1500:00:55，599--> 00:00:58，673正如你可以看到我现在有可用的我上调整控件1600:00:58，673--> 00:01:03，414属性面板中。只是通过看直方图1700:01:03，414--> 00:01:08，870属性面板，我们可以看到，整体对比度是实际上相当不错。1800:01:08，870--> 00:01:10，710没有任何像素的纯白色。1900:01:10，710--> 00:01:13，944你可以看到一点点的直方图和边缘之间的差距2000:01:13，944--> 00:01:17，650显示也没有是完全黑色的像素。2100:01:17，650--> 00:01:21，330我们有一点点的差距在左边。2200:01:21，330--> 00:01:24，866我们也可以告诉从直方图的信息大部分转向2300:01:24，866--> 00:01:28，110明亮的值。图像中的像素大多2400:01:28，110--> 00:01:31，460亮度比中间的灰色，和这就是为什么我们有这种整体的水洗2500:01:31，460--> 00:01:35，755照片中的外观。所以当我们一般有良好的对比度，2600:01:35，755--> 00:01:39，147当它来到那些比中间调亮一点的值2700:01:39，147--> 00:01:43，733有根本是不多的对比。它看起来像是在这种情况下2800:01:43，733--> 00:01:47，470在很大一部分归功霾害中环境中。2900:01:47，470--> 00:01:51，990我想先通过调整黑点和白点的全家福照片。3000:01:51，990--> 00:01:55，558首先，我会调整白色点。并通过单击并拖动白色3100:01:55 558--> 00:01:59，230在直方图下方右侧的滑块，可以调整的亮度3200:01:59，230--> 00:02:03，050最亮的值。我正在成立一个白色的点。3300:02:03，050--> 00:02:06，954所以如果进一步，再向左移动会将此滑块会在更多3400:02:06，954--> 00:02:12，880和更多的像素显示为纯白色无详细。3500:02:12，880--> 00:02:16，042目前，例如，你可以看到，任何有亮度的像素3600:02:16，042--> 00:02:20，870只是有点暗比中间灰色的值将成为纯白色。3700:02:20，870--> 00:02:24，050而这恰好是大多数图像中的像素。3800:02:24，050--> 00:02:28，840我会往前走，带回那白色的点出直方图的边缘。3900:02:28，840--> 00:02:32，126在大多数情况下，这正是我们想要做什么，是的4000:02:32，126--> 00:02:35，359白色的点，并在此问题上的黑点，右 3 月底4100:02:35，359--> 00:02:39，925本身的直方图。当然，我们可以做出更明智4200:02:39，925--> 00:02:44，005决定在什么地方，通过按住调整白色点和黑点4300:02:44，005--> 00:02:48，780Windows 或 Macintosh 上的 Option 键上的 Alt 键。4400:02:48，780--> 00:02:52，476当你按住 Alt 键或 Option 键，然后调整的白色的点，例如，4500:02:52，476--> 00:02:56，060你会看到可以很清楚的显示中的哪些像素正在失去4600:02:56，060--> 00:03:00，250详细信息，基于这种白色点调整。4700:03:00，250--> 00:03:03，834在大多数情况下，你会想要过来，白场滑块向左4800:03:03，834--> 00:03:08，396直到你看到出现一些像素。然后你会想要移到4900:03:08，396--> 00:03:12，370就只是到了最后的那些像素在哪里消失。5000:03:12，370--> 00:03:15，261这不会真实的每一张照片，但在大多数情况下，5100:03:15，261--> 00:03:19，404方法可以很好地。我会执行相同的基本调整5200:03:19，404--> 00:03:22，834黑点。我会按住 Alt 键或 Option 键并单击5300:03:22，834--> 00:03:26，082并拖动黑点向右，直到我开始看到像素5400:03:26，082--> 00:03:33，240出现，然后我会回来向左移动直到最后的那些像素消失。5500:03:33，240--> 00:03:36，888这就说明，我增强对比度的照片中，但不是5600:03:36，888--> 00:03:41，640牺牲任何白色或黑色的像素，在过程中。5700:03:41，640--> 00:03:44，507顺便说一句，注意调整的白色的点是一点点5800:03:44，507--> 00:03:47，630强大的两个黑点的调整。5900:03:47，630--> 00:03:52，380这是使用水平，而不是亮度对比度的优点之一。6000:03:52，380--> 00:03:57，630我们可以为每个调整的白人和黑人分别与不同的值。6100:03:57，630--> 00:04:01，720在某些情况下你可能还想要淡化白色的价值。6200:04:01，720--> 00:04:05，086换句话说上有白色, 图像中的点实际上并不显示为白色6300:04:05，086--> 00:04:09，070而是作为一个相对明亮的灰色阴影。6400:04:09，070--> 00:04:12，590在这幅图像为例，我可以输出滑块，白度值的6500:04:12，590--> 00:04:16，404输出，超过向左。这就是下面的白色滑块6600:04:16，404--> 00:04:19，524在这里，梯度，你会发现，这将导致中最亮的值6700:04:19，524--> 00:04:24，019图像暗下来一点点。你会想要非常小心，如果你是6800:04:24，019--> 00:04:27，623淡化白人或淡化图像中黑人，因为它可以创建6900:04:27，623--> 00:04:31，210一个非常泥泞的外观非常、 非常快。7000:04:31，210--> 00:04:34，574但在这种情况下我认为的那个白色的点，小小的调整以便7100:04:34，574--> 00:04:38，054我们有小咬更多密度图像的明亮区域中，将7200:04:38 054--> 00:04:42，770实际上是有用的。最后，既然已经调整了7300:04:42，770--> 00:04:46，950整体对比度图像中可以调整整体亮度。7400:04:46，950--> 00:04:51，620为此，我会移动中间色调滑块，灰色的滑块，直方图下方。7500:04:51，620--> 00:04:54，436向左移动会使图像变亮，向右移动会变暗7600:04:54，436--> 00:04:57，189图像。在这种情况下我想要多一点点7700:04:57，189--> 00:05:00，197密度，我不想该图像显示太暗，但我想要能够使7800:05:00，197--> 00:05:05，073出多一点点的纹理。得了那些中间色调变暗7900:05:05，073--> 00:05:08，541只是一点点，试图平衡调整前景区域之间8000:05:08，541--> 00:05:11，754在这里，具有较好密度在此刻和背景区域，8100:05:11，754--> 00:05:17，030是有点缺乏。但再次，这多半是由于霾害中。8200:05:17 030--> 00:05:19，880所以我不会消除阴霾的外观。8300:05:19，880--> 00:05:25，180我只是想尝试淡化一点点我总体色调调整。8400:05:25，180--> 00:05:28，291所以正如你所看到的色阶调整给我们带来多一点的控制8500:05:28，291--> 00:05:31，606相比，亮度对比度调整，可以是非常有帮助8600:05:31，606--> 00:05:35，850提高我们的照片中的整体亮度值。

結果 (中文) 3:

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按其性质，年长的图像往往需要更多的关爱

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当你运用你的调整。在这种情况下，例如，我有一个

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图像有点冲出来，缺乏对比。

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而不是使用亮度对比，但是我要用水平将

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整体亮度和对比度调整。

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，原因在于水平调整让我工作

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的集锦分别的阴影。

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我可以调整白色点确定多么明亮的亮区的

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照片将分开的黑色点确定如何黑暗的

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黑暗值的图像将。让我们看看如何水平

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调整一下。我会开始通过添加调整

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层的水平，所以我会去上

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添加调整图层按钮，点击图层面板底部的一半黑一半白，圆形图标，从

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弹出菜单，我会选择水平。这将添加一个色阶调整层

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正如你可以看到，我现在有调节控制提供给我

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属性面板。只要看看在

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属性面板中的直方图，我们可以看到，整体的对比度其实是相当好的。

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没有任何像素都是纯白色的。

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你可以看到有一点点的直方图和边缘的

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显示也没有完全黑像素之间的间隙。

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我们有一点点的差距在左手侧。

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我们也可以从直方图，大多数信息是转向

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光明的价值。在图像的像素

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比中灰亮的，这就是为什么我们有这个整体类淘汰

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外观的照片。所以我们一般都具有良好的对比度，

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当谈到这些值是一点点比中间调

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没有太多的对比在所有。看起来，在这种情况下，

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在很大程度上是由于烟雾的环境中。

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我将开始调整黑点和白点的照片。

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我会调整白点第一。通过点击和拖动的白色

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滑块在直方图右边，我可以调整

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最值。我建立了一个白色的点。

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所以如果我移动这个滑块进一步向左我会赚更多的

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和更多的像素显示为没有任何详细的纯白色。

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的时刻，例如，你可以看到任何像素，亮度

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值比中灰会变成纯白色的黑暗只是一点点。

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，恰好是在图像的像素。

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我先走一步，把白背向直方图的边缘。

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在大多数情况下，这是正是我们要做的，是把

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白点，对这个问题的黑点，右上的

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00:02:35359结束——> 00:02:39925
直方图本身。当然我们可以做出更明智的

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决定在何处调整白点和按住

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在Windows或Macintosh的选项键Alt键的黑色点。

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当你按住Alt或Option键，然后调整为例，
白一点，
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你会看到一个非常明确的指示，指示的像素是失去

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细节，在此基础上白一点调整。

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在大多数情况下，你会想带白点的滑块向左

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直到你看到一些像素点出现。然后你会想去

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只是其中的那些像素的最后消失点吧。

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，不会为每一个图像，但在大多数情况下

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方法将有助于你是真的。我会执行相同的基本调整

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为黑色的点。我按住Alt或Option键并单击

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拖动黑色点到右边直到我开始看到像素

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出现然后我会在左边的像素，直到最后消失。

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和表明我的照片对比度增强，但不

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牺牲任何白色或黑色像素的过程。

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通知的方式，为白色点调整有点

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更强，比黑色的点调整。

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这是一个利用水平的优点，而不是亮度对比。

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可以调整的白人和黑人分别与每一个不同的值。

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在某些情况下，您可能还想调下白色的价值。

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换句话说，有在图像不显示为白色

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而是作为一个相对明亮的灰色的白色的点。

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这个图像为例，我可以把输出滑块，为

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输出的白度值，在左边。那是白色的滑块

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梯度在这里，你会发现这使最亮的值在

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图像变暗了一点。你要非常小心，如果你

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弱化或淡化白人黑人的形象因为它可以创建

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非常泥泞的外观非常，非常快。

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但在这种情况下，我认为一个轻微的调整，白一点，这样

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我们有点密度的图像中最明亮的区域，将

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实际上证明是有益的。最后，我现在已经调整了

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整体对比图像中我可以调整整体亮度。

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那，我将中间色调的灰色滑块，滑块，下方的直方图。

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向左移动会使图像和向右移动会使

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图像。在这种情况下，我要一点点

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密度，我不想要的形象显得太暗，但我想能够

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一点更多的纹理。所以我要变暗的中间调

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只是一点点，试图平衡之间的前景区域

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这里的调整，具有很好的密度的时刻，和背景区域的

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有点缺乏。但是，这主要是由于烟雾。

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所以我不打算消除雾霾的出现。

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我只是想尽量小声一点与我的整体色调调整。

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所以你看，调整给我们多一点的控制

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相比，亮度对比度调整，可以在

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提高照片的整体亮度值。