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选择性编辑 – 减淡、加深、锐化 – 译学馆
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选择性编辑 - 减淡、加深、锐化

Photoshop Playbook: Selective Edits - Dodging, Burning & Sharpening

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PS教程 选择性的编辑工作:减淡 加深和锐化
Photoshop PlaybookSelective Edits: Doging, Burning& Sharpening
精确详细的编辑是使用PS的精髓
Precise detailed edits are what Photoshop is all about
然而 当涉及到色调的编辑
And yet when it comes to tonal edits
人们经常会想到使用图层蒙版
People often think in terms of layer masks
但事实上利用画笔工具也可以做到
Well, there’s actually another way to do it using brush based tools
这儿有几个功能要知道 接下来我会用PS展示给你们
There’s a couple of things to know and I’d like show you those in Photoshop
我们这儿有一张高对比度的图片
So here we have a really high contrast image
如果我们双击我常用的缩放工具
and if we double click the Zoom tool which I always want to do
可以看到图片会以原图实际像素尺寸显示
so I can see my image at a hundred percent
我们可以在图片中看到许多粗糙的色调
I can see that there’s a lot of really harsh tones in this image
在之前我提到我们可以使用图层蒙版和调整层调整图片
Now as I mentioned before we could use layer masks and adjustment layers
但是我想用画笔工具试试
but we want to use brush based tools
不过在我们做之前 让我们先复制图层确保有一个无损的环境
but before we do that, let’s duplicate our layer so that we have a non-destructive environment
下面我将要给你们展示几个工具 可能你们很久之前就尝试用过
And I’m going to show you a couple of tools that you may have tried a really long time ago
但它们在CS4版本有了较大改动
that have changed a lot, they changed a lot in CS4
第一个是减淡工具 我们可以通过它使图片的部分阴影变亮
The first one is the Dodge tool and we want to use it to open up some of our shadows
那么按照它过去的设置 如果我在这儿使用减淡工具
Now the way that it used to work is if I came over here to dodge this
看起来我只是在图片顶层涂上了一层白色 如果你也这样尝试过
I would just literally paint white on top of the image and if you tried this
你可能用过一次 但觉得这并不是你想要的效果
you’ve probably used it once and you thought that’s not how I thought was going to work at all
然后你就再也不想用它了
I never want to use that again
我将按住Command键+Z键(撤销操作)然后选择保护色调
I’m going to hit command+Z and I’m going to select protect tones
现在这个选项默认是打开的
Now this is on by default and since CS4
从CS4开始这个选项一直是默认选中的 所以你可以直接使用
this is just been on be by default so it will just work when you try it
当到这一步时 我可以使用Ctrl+Option(苹果MAC)或Ctrl+Alt(Windows)键
And I can come in here, I can use my Control+Option or Ctrl+Alt keys
通过点击并拖拽来调整到我想要的画笔大小
And click and drag to get the brush size that I want
然后用它将恢复原来大小
and even with this turned way up to a hundred percent
你可以看到我在使阴影变亮
You can see that I can open up the shadows
却没有影响到中间色调和高亮区
without affecting the mid-tones or the highlights
我能通过点击任何区域
I can come unto any different area
然后提高它的亮度
and just brighten that up
如果我想调整中间色调
If I wanted to affect the mid-tones
我只需要改变这里 然后通过点击这块区域来提高亮度
then I would just switch that and come in here and brighten those
现在正确的工作流程应该是使用一个亮度较低的背景
Now the correct workflow here is to use a much lower setting
然后慢慢的增强
and slowly build it up
如果你有一个带有压力传感器的画笔 比如Wacom tablet
If you have a pressure sensitive brush like a Wacom tablet
那将对你的工作很有帮助
that would be a really great way to do it
但因为这只是个示范 所以我会进行的比较快
but for the sake of this demonstration, I’m just going to do it really really quickly
另一个工具是加深工具
the other tool would be the Burn tool
和减淡工具一样 如果我想在CS4之前的版本中加深高光区
and like the Dodge tool if I wanted to burn highlights in the past prior to CS4
就像是我在涂黑
It would something like this I was essentially painting black
但如果打开保护色调的选项
but with Protect Tones on
我可以这样涂 我可以将高光区这样变暗
I can paint just that tone, I can just darken the highlights
现在重复之前的步骤 我将把变暗参数调的非常小
now again the way I would use this, I’d turn it way down
然后慢慢地处理图片的这些区域
And I really slowly build up areas of your image
你可以在阴影和高光部分涂抹
you can really make some nice changes going in
做出一些非常棒的改变
brushing in your shadows and your highlights dodging and burning
接下来让我们来快速介绍一下经常被人误解的锐化
let’s talk really quickly about sharpening this is something that’s often misunderstood
并且这是我喜欢的另一种无损锐化的方法
and this is another one where I like to use a non-destructive method of doing this
我要做的第一件事是将它设置成智能过滤
So the first thing that I’ll do is I’ll convert this for smart filters
这实质上是将其转成过滤层
and that’s going to essentially turn this into a filter layer
我想最先介绍的是全局锐化
and the first thing I want to talk about is global sharpening
所以当我们再一次锐化时
so again when we’re sharpening
我们将它缩放至实际像素尺寸大小 这样我们可以看清图片的细节
we want to be at a hundred percent, so we can look at our image
当我们要对它进行全局锐化时
and when it comes to global sharpening
没有比使用智能锐化更好的方法了
there’s not a better way to do that than Smart Sharpen
很多人使用USM锐化滤镜 它有个滑稽的名字 它被使用了很长时间
a lot of people use Unsharp Mask, it’s got a funny name, it’s been there a long time
但它不是锐化的最好方式
it’s not the best way to do sharpening here
智能锐化有很多优点
Smart Sharpen has a bunch of advantages
它能得到非常好的预览效果
it’s got a really nice preview
它能被非常好的控制
it’s got some great controls
它不仅能锐化还能减轻杂色
it’s got the ability to not only sharpen but reduce noise
当你在做锐化处理时 你可以进行保存和载入预设
when you’re sharpening, you can save and load presets
你可以调整阴影区和高光区
you can affect the areas in the shadows and the highlights
但我们现在谈到的精确编辑功能意味着只对照片做很小的改变
but what we’re talk about here is precise edits things that are done to a tiny little part of your image
所以我将撤销之前的操作 我将使照片恢复原状
so I’m going to cancel out of here, I’m going to revert this image
然后我们使用画笔技术
and we’re going to use our bursh based technique
涉及到复制图层
which involves duplicating our layer
然后点击这里的锐化工具
and coming over here to our Sharpen tool
现在图片就像减淡和加深了很多次 多年以来锐化工具的作用方式
Now, much like Dodge and Burn. For many years, the way the Sharpen tool worked
就是失真 用了后你可能得到一些根本没法用的失真图片
is it created artifacts and if you tried this, you probably got some artifacts and you never used it again
像其他几个功能一样 保护细节选项是默认开启的
like those others protect detail is just on by default
这样你就可以在这任性地使用锐化
and you can aggressively sharpen in here
而不会出现任何失真
without creating any artifacts
按这种基于图层的工作流程 你可以将其关闭
by using a layer based workflow you can turn that off
你可以调整两种不同的混合模式
you can play around with different blend mades
因此你可以发现在选择性编辑的帮助下不论是色调编辑还是锐化
so you see that with selective edits whether it’s tonal edits or sharpening
画笔模式是非常有效的 它很便于使用也很强大
the bursh based method is a really really great way to go, it’s really easy to use and it’s really powerful
只需要保证使用很小的参数然后慢点调整
just be sure to use a low value and build up slowly
并且确定按工作流程使用图层
and make sure to use a layer based workflow
那么你就可以以一个无损的方式将刷子应用于编辑
so you’re using a non-destructive way of applying those brush based edits
《学习使用HDR》《如何改变图片大小》PS教程 关注 查看播放列表
watch getting stared with hdr

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视频概述

PS在CS4版本中优化了减淡,加深,锐化功能,使照片更真实,使用更方便。

听录译者

Chieh

翻译译者

AF

审核员

审核团MG

视频来源

https://www.youtube.com/watch?v=6PIe3IGrPqY

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