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关于图片锐化处理你需要知道的

Photoshop Playbook: What You Need to Know About Sharpening Images

在你的摄影工作流程中
Sharpening is a really important part
锐化是一个十分重要的环节
of your photographic workflow
Photoshop中有许多锐化的方法
there are a lot of ways to sharpen in Photoshop
我要向你展示最佳的锐化方法
I want show you the best way to sharpen
和几件在你锐化图片时
and a few things you ought to know about
你需要了解的事情
when sharpening your images
首先我们要做的是
The first thing I want to do
把要用的图片拖入Camera Raw
is take this image through Camera Raw
如果你用的正好是photoshop CC版软件
Now, if you’re in Photoshop CC
你可以这么做 直接点这里
you can do that by coming right in here
找到Camera Raw Filters
to Camera Raw Filters
如果不是呢
If not
你的原始图片会自动用Camera Raw打开
your raw files will automatically go into Camera Raw
JPG和TIFF格式的图片也可以用Camera Raw打开
or you can train JPGs and TIFFs to open into Camera Raw
只要在Photoshop的文件处理中改变一下优先选项
by changing your preference in Photoshop’s file handling
在Camera Raw面板上我找到了所有种类的控制按钮
within Camera Raw, I’ve got all sorts of controls
其中之一就是锐化
and one of those is sharpening
现在 只要我一做锐化
now anytime I’m sharpening
我都想保证至少能放大到100%
I want to make sure that I zoomed in to at least 100%
现在做的这幅图 我想把它放大到200%
in this case I’m gonna go to 200%
这里有一些熟悉的滑动条
and I’ve got some familiar sliders here
如果你用过Unsharp Mask
if you ever used Unsharp Mask
这些滑动条其实和它很像
this works a lot like that
和Unsharp Mask很像
like Unsharp Mask
如果你用过头的话
if you use this aggressively
它就会开始变得
you will start to create
失真
artifacts
你可以用这里的细节滑动条
and you can control those
将他们
to some degree
控制在某种程度内
with the detail slider here
它和极值滑动条有点类似
it’s kinda similar to the threshold slider
在Camera Raw和Lightroom里有一件你能做的
now one thing you can do in Camera Raw
且对于此工作流程中独一无二的事情
and Lightroom that’s unique to this workflow
就是这个掩膜滑块
is this masking slider
看 如果我拖动一下
now if I just pull this
好像看不出有什么变化
it’s not really clear what’s happening
但如果我拖动同时按住选项键
but if I hold the optional key while pulling this
我们看到所有的都被锐化了
white shows me that everything is being sharpened
当我滑动过来
but as I pull this over
我其实是建起了一个锐化掩膜
I’m building a sharpening mask
所以说这真的是一个很好用的功能
so it’s really a neat function
你们注意看 当我把它拉到右边
you can see that if I pull where over the right
所有的这些黑色区域都没有被锐化
all those black areas are not sharpened
也就是说 只有指定区域会被锐化
so only the task is gonna be sharpened
所以 如果我只看预览
so if I toddle my preview here
可以看到 我只是把文字和线条锐化了
I can see that I’m just sharpening around the lines and texts
当然了
of course
这个的缺点是 当你使用过度时
the shortcoming here is that it does create artifacts
会出现失真
when you use it aggressively
所以我只在Camera Raw里用了一点点的锐化
so I only sharpen a little bit in Camera Raw
要想更大面积的锐化 就要用Photoshop了
for more aggressive sharpening, you want to use Photoshop
所以 我们把刚刚说的这些都取消
so let’s cancel all of these
回到原图上来
and we come back to our image
再一次 让我们双击放大工具
and again, let’s just double click on our zoom tool
放大到100%
to become it to 100%
然后 我们打开滤镜菜单
and we are gonna come up here to our Filter menu
好了 这里有好多不同种类的锐化
now there are a lot of different ways to sharpen
我们只需注意不要只用一种
we are just gonna focus on
一定多用几种
not using one and make me sure that we use another
但是在用之前
but before we do that
我们先打开智能滤镜
let’s convert to Smart Filters
它本质上是个滤镜层
that’s essentially a filter layer
我也可以回退
I can go back and change the properties
把滤镜效果添加到后来的锐化中
after the fact I can add it to my sharpening afterwards
于是 在滤镜选项里
so in the filter menu here
我们先看一下最常用的锐化方法
let’s first look at a really common way to sharpen
但我不会建议这个方法
but one that I’m not gonna recommend
那就是Unsharp Mask
and that’s Unsharp Mask
这个对话框一直会在这里
this is been in here for ever
它效果不错 和我们刚刚在Camera Raw里差不多
it works really well to very similar to what we just did at Camera Raw
你看我们能在这里锐化
you can see that we can sharpen here
但是一旦我们做的太过
but as soon as we get aggressive
做出来就像假的一样
we’re gonna pick up a bunch of artifacts
它有一个有趣的名字好多人知道并使用它
it got a funny name, a lot of people know about it, a lot of people use it
但是有个更好的方法
but there is a better way to do this
我们把这些都撤销
so let’s cancel all of that
在这打开Smart Sharpen
and coming here to Smart Sharpen
你可以用Smart Sharpen做很多独特的事情
you can do a lot of unique things with Smart Sharpen
我可以放得更大
i can zoom in closer
这里有个不错的预览
I got a nice preview here
我们可以调整图片大小到100%
we can have our image 100%
我们在这预览达到200%
and our preview here at 200%
我要把它设置成镜头模糊
I wanna set this to Lens Blur
现在可以看到即使我过度锐化
and I can see that even if I aggressively sharpen
因为我有这个去噪滑动条
because I’ve got this Reduce Noise slider
现在有之前的虚假感了
I get all those artifacts I got before
但是我可以用去噪清掉它们
but I can wash those away using Reduce Noise
现在 我确定执行这些调整
now, let’s say I committed this
显然现在这个样子太假 太尖锐了
and obviously this is way too crunchy and way too sharpened
用智能滤镜的好处就是可以做好之后再修改
the benefit to using a smart filter is that I can change that after the facts
所以如果我要打印它 但发现它看着有点假
so if I going print this, and I find that’s way too crunchy
可以打开这里 双击
I can just come in here, double click
再打开这个对话框
revisit this dialogue
把它调低
turn it down
做点必要的调整
make an adjustment I need to make
完事之后点OK
and click OK when I’m done
所以锐化时要注意的就是
so the thing to remember about sharpening is
知道你要锐化哪里
know where you want to sharpen
并且在锐化作业中 少即是多
and less is more with sharpening
注意不要做得太过
try not to over do it
但是实际上如果你用Smart Filter的话
but the truth is if you using a Smart Filter workflow
你可以随时修改参数
you can always change the parameters after the facts
所以如果你要把它发布到网上 或是打印下来
so if you’re going to the web, if you’re going to print
你可以让它看起来自然
you can make it just the way it ought to look

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视频概述

Photoshop图片锐化,以及如何调整自然避免失真。

听录译者

釉佾

翻译译者

[B]白菜

审核员

豆子

视频来源

https://www.youtube.com/watch?v=SWuyq8v0sbo

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