100:00:02,670 --> 00:00:05,740in th

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in the previous segment we saw that a
luminosity selection

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is a selection based on the luminosity
values within the image

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but I find that knowing what a
luminosity selection is

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just makes me think a behold much new
questions curfew

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how do you make a luminosity selection
what exactly is being selected

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once a luminosity selection is made how
does become a luminosity mask

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and is a luminosity selection like any
other selection but explore these

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questions one at a time

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how do you make a luminosity selection

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as with all things in Photoshop there
are multiple ways to accomplish the same

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result

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I'll show you two ways making a
luminosity selection one is to hold down

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the Control key

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or the command key on a Mac and then
click

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on the channel from which you want to
make the selection in this case

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the RGB channel I can also make a
selection

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from the red channel where the green
channel for the blue channel

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by holding down the control or command
key and clicking on the channel

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the other way to make a luminosity
selection

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is to highlight the channel that you
want to make the selection from

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and then click the load channel as
selection icon at the bottom of the

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channels panel

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for the red channel

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the green channel and the blue channel

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or the RGB channel either method you use
creates the same selected area as

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indicated by the marching ants

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if you aren't familiar with the term our
chance it's what we call the moving

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dotted lines outlines

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elections in Photoshop what exactly is
being selected

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a lot of marching ants appear on the
screen when a luminosity selection is

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made

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but it can be difficult to determine
exactly what has been selected

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tony and I find that using a ton
gradient is invaluable in helping us

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determine

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which luminosity values are included in
a selection to make a ton gradient start

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by creating a new white image document
it can be any size but 1000 pixels on

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the long side should fit well in most
screens

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for the color settings choose the RGB
color mode and it probably doesn't

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make too much difference but also select
the 16 bit depth

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to make sure that I have a smooth tonal
greedy now select a gradient tool

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set the foreground color to white and
the background color to black

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and now drag a gradient from one side

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the white image to the other side

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and the greedy all be created

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this is a document that contains all up
the luminosity values from pure white

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to cure black with very smooth gradient
have

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shades agree in between I recommend that
you create and save your own tone

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gradient to help you better visualize
luminosity selections

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you can save it has a to file or a PST
file

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collette Andrea and then open it up
whenever you want to visualize a

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luminosity selection

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now let's make a luminosity selection
the RGB channel

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up this greedy some hold down the
controller command key

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00:03:19,380 --> 00:03:26,110
and click on the RGB channel you can
clearly see that is the lightest portion

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of the gradient

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that has been selected so it appears
that we are selecting the brightest

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luminosity values in the image

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Tony calls this initial in a nasty
selection

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above the brightest towns delights
selection because half the latest towns

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are selected

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I often refer to this as a fifty-percent
light selection but returned to our

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color image

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now I can see that the marching ants

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are indicating that the brightest
luminosity values in this image

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are selected 12 luminosity selection is
made

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how does become a luminosity mask let's
start by D selecting

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this current selection in Photoshop

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if you first make a selection like I did
previously when I use the quick

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selection tool

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to select the sky

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and then generate a new white mask

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for example when I create a Curves
adjustment layer as long as the

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selection was active when the mask was
made

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the mask will reflect the selection in
the mask the area inside the selection

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will be white

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revealing any adjustment made on that
layer and the area outside the selection

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will be black

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concealing any adjustments made on that
where luminosity selections are no

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different in this respect

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00:04:45,940 --> 00:04:55,190
if you have a luminosity selection
active and then generate a new mask

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the mask will reflect the selection

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is a luminosity selection like any other
selection

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this is where masked men from luminosity
selection show their true worth

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the manassas elections are not by an
eerie like more simple selections

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that is to say that the pixels on a
luminosity selection

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are not either one hundred percent
selected or 100 percent

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not selected resulting in a pure white
and black mask

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00:05:24,590 --> 00:05:27,810
to view a mask hold the Alt key

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00:05:27,810 --> 00:05:31,260
or the Option key on a Mac and click to
mask thumbnail

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00:05:31,260 --> 00:05:34,260
when we view the mask

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00:05:34,260 --> 00:05:38,840
the original sky selection that we made
we can see that it is very simple

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all white or all black mask but when we
view the mask

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generated from the luminosity selection
we can see that it is a very different

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and very highly detailed mask

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now consider every pixel in the image
was actually selected somewhere between

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zero percent

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and a hundred percent based on its
luminosity 10 per cent being black in

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the mask

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00:06:01,100 --> 00:06:05,200
100 per cent being white in the mask and
every other to grieve luminosity being

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partially selected

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the resulting in different shades of
grey so

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if every pixel other than pure black is
partially selected to some degree

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what did the marching ants in a
luminosity selection actually show us

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they're showing us regions in the image
in which the pixels are at least 50

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percent selected

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in the case at this current lights
selection the ants were drawn around

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a reserve the image in which the pixels
had a total value abruptly

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50 percent gray or lighter and therefore

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there at least 50 percent or more
selected

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now that we know how to make a basic
lights luminosity selection

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and then create a mask using that
selection let's find out what it would

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look like to make an adjustment using
the mask

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steady this image I'm gonna go to a
different image

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that has a little more contrast the
light it'll make a luminosity mass a

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little more

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obvious apparent before we go to
Amanda's the mask adjustment let's just

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try an adjustme

結果 (中文) 1:

100:00:02，670--> 00:00:05，740在前一段中我们看到，亮度选择200:00:05，740--> 00:00:08，960基于亮度的选择吗在图像内的值300:00:08，960--> 00:00:12，059但我发现那知道什么亮度选择是400:00:12，059--> 00:00:15，749只是让我想看哪多新问题宵禁500:00:15，749--> 00:00:21，599你如何使亮度选择到底是被选定的内容600:00:21，599--> 00:00:26，660一旦进行亮度选择如何并成为一个亮度面具700:00:26 660--> 00:00:32，259而是像任何亮度选择其他选择但探索这些800:00:32，259--> 00:00:33，450一次一个的问题900:00:33，450--> 00:00:36，470你如何使亮度选择1000:00:36，470--> 00:00:40，680正如所有的事情在 Photoshop 中那里通过多种方法来完成同样1100:00:40，680--> 00:00:41，450结果1200:00:41，450--> 00:00:45，800我会告诉你制作的两种方式其中一个是按住的亮度选择1300:00:45，800--> 00:00:46，890控制键1400:00:46，890--> 00:00:50，200或在 Mac 上的命令键，然后单击1500:00:50，200--> 00:00:53，570在要从中频道在这种情况下做出的选择1600:00:53，570--> 00:00:57，030RGB 通道还可以选择1700:00:57，030--> 00:01:00，950从红色通道在哪里绿色蓝色通道的通道1800:01:00，950--> 00:01:05，339通过按住控制或命令键并单击通道上1900:01:05，339--> 00:01:09，350另一种方法使亮度选择2000:01:09，350--> 00:01:13，740高亮的频道就是你想要从选择2100:01:13，740--> 00:01:17，700然后再单击作为负载通道选择图标的底部2200:01:17，700--> 00:01:18，540通道面板2300:01:18，540--> 00:01:22，570红色通道2400:01:22，570--> 00:01:27，530绿色通道和蓝色通道2500:01:27，530--> 00:01:35，330或 RGB 通道你使用任何一种方法创建相同选定的区域2600:01:35，330--> 00:01:36，990表示由行军蚂蚁2700:01:36，990--> 00:01:40，420如果您不熟悉这个词我们这就是我们说的移动的机会2800:01:40，420--> 00:01:41，830虚线轮廓2900:01:41，830--> 00:01:45，860在 Photoshop 中的选举到底是什么被选中3000:01:45，860--> 00:01:50，060大量的行军蚂蚁出现在屏幕亮度选择时3100:01:50，060--> 00:01:50，479作3200:01:50，479--> 00:01:53，790但它可以很难确定选择了什么3300:01:53，790--> 00:01:58，080托尼和我发现，使用一吨渐变是宝贵帮助我们3400:01:58，080--> 00:01:58，810确定3500:01:58，810--> 00:02:03，490其中亮度值包含在的选择，使吨渐变开始3600:02:03，490--> 00:02:10，829通过创建一个新的白色图像文档也可以是任何大小，但 1000年个像素上3700:02:10，829--> 00:02:14，030长边应适应大多数屏幕3800:02:14，030--> 00:02:18，300对于颜色设置选择 RGB颜色模式和它可能不会3900:02:18，300--> 00:02:21，570使太大的差别，但也选择16 位深度4000:02:21，570--> 00:02:28，410要确保自己有一个平滑的色调贪婪的现在选择渐变工具4100:02:28，410--> 00:02:32，730设置前景色为白色，背景颜色为黑色4200:02:32，730--> 00:02:37，200现在从一侧拖动渐变4300:02:37，200--> 00:02:40，830白色的图像到另一边4400:02:40，830--> 00:02:44，550和创建的贪婪的所有4500:02:44，550--> 00:02:50，100这是一个包含所有文档从纯白色明度值4600:02:50，100--> 00:02:54，450要治愈很平滑渐变黑色有4700:02:54，450--> 00:02:59，200深浅之间同意我建议创建和保存您自己的语调4800:02:59，200--> 00:03:02，320梯度，以帮助您更好地可视化亮度选择4900:03:02，320--> 00:03:05，700你可以将它保存了文件或 PST文件5000:03:05，700--> 00:03:09，650柯莱特 Andrea 然后开启每当您想要显示5100:03:09，650--> 00:03:10，950亮度选择5200:03:10，950--> 00:03:15，410现在让我们进行亮度选择RGB 通道5300:03:15，410--> 00:03:19，380这贪婪一些按住控制器命令键5400:03:19，380--> 00:03:26，110您可以在 RGB 通道上单击清楚看到，是最轻的部分5500:03:26，110--> 00:03:26，970渐变的5600:03:26，970--> 00:03:30，430所以看来已选择我们都选择最亮5700:03:30，430--> 00:03:32，310图像中的亮度值5800:03:32，310--> 00:03:35，360托尼打电话这最初在急选择5900:03:35，360--> 00:03:40，950上面最亮的城镇美食选择因为半新的城镇6000:03:40，950--> 00:03:41，700选择6100:03:41，700--> 00:03:46，930我经常把这称为百分之五十但回到了光选择我们6200:03:46，930--> 00:03:47，790彩色图像6300:03:47，790--> 00:03:51，170现在我可以看到，行军蚂蚁6400:03:51，170--> 00:03:55，130表示最亮此图像中的亮度值6500:03:55，130--> 00:03:59，100是选定的 12 亮度选择是作6600:03:59，100--> 00:04:03，860如何让我们成为一个亮度面具通过 D 选择启动6700:04:03，860--> 00:04:07，120这在 Photoshop 中的当前所选内容6800:04:07，120--> 00:04:10，980如果你第一次做出选择像我一样以前当我使用快速6900:04:10，980--> 00:04:12，019选择工具7000:04:12，019--> 00:04:19，890若要选择天空7100:04:19，890--> 00:04:22，080然后生成一个新的白色面具7200:04:22，080--> 00:04:26，100例如当我创建曲线调整图层，只要7300:04:26，100--> 00:04:28，250选择时的面具是处于活动状态作7400:04:28，250--> 00:04:33，820掩码将反映中的选定内容面罩内选择的区域7500:04:33，820--> 00:04:34，560将白色7600:04:34，560--> 00:04:38，980揭示任何的调整层和选择以外地区7700:04:38，980--> 00:04:39，860将黑色7800:04:39，860--> 00:04:44，510隐藏在那作的任何调整亮度选择在哪里没有7900:04:44，510--> 00:04:45，940在这方面不同8000:04:45，940--> 00:04:55，190如果你有一个亮度选择积极，然后生成一个新的掩码8100:04:55，190--> 00:05:00，020掩码将反映所选内容8200:05:00，020--> 00:05:06，360是像任何其他的亮度选择选择8300:05:06，360--> 00:05:10，640这哪里是蒙面人从亮度选择显示其真正的价值8400:05:10，640--> 00:05:14，740马纳萨斯选举不是由更多的简单选择像令人毛骨悚然8500:05:14，740--> 00:05:17，780这就是说，上的像素亮度选择8600:05:17，780--> 00:05:21，430不是要么百分百选定或 100%8700:05:21，430--> 00:05:24，590未选中导致纯白色和黑面具8800:05:24，590--> 00:05:27，810若要查看蒙版按住 Alt 键8900:05:27，810--> 00:05:31，260或 Mac 和点击 Option 键蒙版缩览图9000:05:31，260--> 00:05:34，260当我们查看蒙版9100:05:34，260--> 00:05:38，840我们取得原始天空选择我们可以看到，它是非常简单9200:05:38，840--> 00:05:42，760全白或全黑的面具，但是当我们查看蒙版9300:05:42，760--> 00:05:47，870从亮度选择生成我们可以看到，它是一份非常不同9400:05:47，870--> 00:05:50，000和非常详细的面具9500:05:50，000--> 00:05:54，890现在考虑每个图像中的像素其实入选地方之间9600:05:54，890--> 00:05:56，0700%9700:05:56，070--> 00:06:00，400和百分百的基于其被黑在光度 10%9800:06:00，400--> 00:06:01，100面具9900:06:01，100--> 00:06:05，200100%被白色的面具和每隔一去伤心亮度被10000:06:05，200--> 00:06:06，390部分选定10100:06:06，390--> 00:06:10，020由此而产生不同的色调这样的灰色10200:06:10，020--> 00:06:14，860如果是纯黑色以外的每个像素部分选定某种程度10300:06:14，860--> 00:06:26，160的所作所为行军蚂蚁亮度选择实际上向我们展示10400:06:26，160--> 00:06:29，360他们向我们展示了区域中的图像像素在至少 5010500:06:29，360--> 00:06:30，700%选择10600:06:30，700--> 00:06:34，950在案件在这当前的灯选择其中的蚂蚁周围绘制40R00:06:34，950--> 00:06:38，680储备的图像像素突然有一个总的值10800:06:38，680--> 00:06:42，14050%灰色或较轻的因此10900:06:42 140--> 00:06:49，780有至少 50%或更多选择11000:06:49，780--> 00:06:52，960现在，我们知道如何使一个基本灯光亮度选择11100:06:52，960--> 00:06:57，050然后创建蒙版，选择让我们找出它的会11200:06:57，050--> 00:06:59，530看起来像要调整使用面具11300:06:59，530--> 00:07:02，900稳定的这张图片，我要去去不同的图像11400:07:02，900--> 00:07:07，200那有一点更多对比光它使大规模的亮度11500:07:07，200--> 00:07:07，830小更多11600:07:07，830--> 00:07:11，700明显明显之前我们去阿曼达的掩码调整让我们只是11700:07:11，700--> 00:07:13，200试着调节

結果 (中文) 3:

1
00:00:02670——> 00:00:05740
前面的段中我们看到，一个
光度选择

2
00:00:05740——> 00:00:08960
是一个选择的亮度
值的基础上，在图像

3
00:00:08960——> 00:00:12059
，但我发现，知道
光度选择是什么

4
00:00:12059——
> 00:00:15749只是让我想看很多新
问题宵禁5


00:00:15749——
> 00:00:21599如何做你究竟是被选定的

6
00:00:21599——> 00:00:26660
一次光度选择的亮度选择
是怎么
成为一个亮度掩模

7
00:00:26660光度选择像其他任何
选择——> 00:00:32259
，而是探索这些8


00:00:32259——> 00:00:33450
一个问题一时间

9
00:00:33450——
> 00:00:36470如何做你使亮度选择

10
00:00:36470——> 00:00:40680
所有的东西在PS图象处理软件那里
多种方式来完成相同的

11
00:00:40680——> 00:00:41450
结果

12
00:00:41450——> 00:00:45800
我会告诉你两种方式
光度选择是按住

13
00:00:45800——
> 00:00:46890控制键

14
00:00:46890——
> 00:00:50200或Command键在一个MAC，然后

单击15

00:00:50200——> 00:00:53570
在渠道你想要到
做出选择，在这种情况下，

16
00:00:53570——> 00:00:57030
的RGB通道我也可以做出选择


17
00:00:57030——> 00:01:00950
从红色通道，的绿色
通道18蓝色通道


00:01:00950——> 00:01:05339
的按住控制或指挥
关键和点击的通道

19
00:01:05339——> 00:01:09350
其他方式使亮度
选择

20
00:01:09350——> 00:01:13740
是突出的通道，你
想使选择

2
00:01:13740——> 00:01:17700
，然后点击加载通道
选择图标底部00:01:17700


22——00:01:18540
渠道>面板

23
00:01:18540——> 00:01:22，570
24红色通道


00:01:22570——> 00:01:27530
的绿色通道的25蓝色通道


00:01:27530——> 00:01:35330
或的RGB通道两种方法你使用
创建相同的选定区域

26
00:01:35330——> 00:01:36990
表示行军蚂蚁

27
00:01:36990——> 00:01:40420
如果你还不熟悉这个词我们
机会这是我们所称的移动

28
00:01:40，420——> 00:01:41830
虚线概述了

29
00:01:41830——> 00:01:45860
选举在PS图象处理软件究竟是选择

30
00:01:45860——
> 00:01:50060很多的行军蚁出现
时屏幕亮度选择是

31
00:01:50060——作出
> 00:01:50479

32
00:01:50479——> 00:01:53790
，但它可以是困难的，以确定
究竟发生了什么选择了

33
00:01:53
，790——> 00:01:58080
托尼，我发现，使用吨
梯度是无价的在帮助我们

34
00:01:58080——> 00:01:58810
确定

35
00:01:58810——>
00:02:03490的亮度值包括
选择使一吨梯度开始

36
00:02:03490——> 00:02:10829
的创建一个新的白色的图像文件
可以任意大小，但1000像素

37
00:02:10829——
> 00:02:14030长边应适合在大多数
屏幕

38
00:02:14030——> 00:02:18300
的颜色设置选择的RGB
颜色模式，它可能根本不

39
00:02:18300——> 00:02:21570
差别太大而且选择
16位深度

40
00:02:21570——> 00:02:28410
来确保我有一个平滑色调
贪婪现在选择一个渐变工具

41
00:02:28410——
> 00:02:32730设置前景颜色为白色和
背景颜色黑色

42
00:02:32730——> 00:02:37200
现在阻力梯度从一侧

43
00:02:37200——> 00:02:40830
白色图像的另一边

44
00:02:40830——创造了

45
00:02:44550——> 00:02:50100
这是一个文档，其中包含所有
的亮度值从纯白色

46
00:02:50 > 00:02:44550
和贪婪的所有，