【Lynda高精度字幕由CGSUB.COM独家发布】 If you are shooting at bracketed set of HDR source images and something in your 如果你是射击将HDR源图像和在你的东西
scene moves between shots, you can end up with a ghosting problem. 场景之间的移动镜头,你可以得到一个重影的问题。
This is actually a pretty intuitive thing. 这实际上是一个非常直观的东西。
Let's take a look at this set. 让我们来看看这个。
I am going to switch over here to Filmstrip mode so we get a bigger view. 我要切换到幻灯片模式所以我们得到一个更大的观点。
While taking their shot, these kids moved and so if I take these three images 虽然他们,这些孩子感动,如果我把这三个图像
and mush them together, we get a problem because in this image there is an arm 和胆怯起来,我们得到了一个问题,因为在这幅图像中有一个手臂
here, and in this image there is not. 在这里,在这个没有形象。
So what should it choose to do with these things? 所以应该选择用这些东西做什么?
Of course, it doesn't know from arms, and so what it will end up doing is 当然,它不知道的武器,所以它最终要做的是什么
putting half arm and half lovely hillside, and I will get this kind of 把手臂和可爱的山坡上,一半一半,我将这种
semi-transparent arm over this hill. 半透明的手臂在这个山。
That's called ghosting because you end up with these kinds of ghostly figures in your scenes. 这叫做重影,因为你最终得到的这些可怕的数字在你的场景。
Fortunately, most HDR processing software today has a ghost removing 幸运的是,大多数HDR处理软件今天鬼移除
mechanism of some kind. 的某种机制。
We are going to look at Photoshop so I am going to just launch right into a 我们要看看Photoshop所以我要发射到
merge here which I do just like I always would. Select my images in Bridge and 合并,就像我总是会。在桥梁和选择我的图片
then launch the Merge to HDR process. 然后启动HDR的合并过程。
And when it's done, I get my normal Tone Mapping dialog box. 当它结束的时候,我把我的正常色调映射对话框。
First thing I am going to do is switch over here to 16 bit. 我要做的第一件事是16位开关在这里。
So let's take a look at what we got here. 让我们看看我们这里了。
I am going to zoom in a little bit to the area in question and you can see we 我要放大一点问题,你可以看到我们的区域
got a lot of ghosting problems. 有很多重影问题。
We've got several arms here. 我们这里有一些武器。
We've got a ghost of an arm here, so moving on the pants like two to three feet 我们有一个幽灵的手臂,所以移动的裤子像两到三英尺
down here, and a kind of shaky head up here and some shaky shoulders. 下面,一种摇摇欲坠的头上面,有些摇摇欲坠的肩膀。
These kids aren't super sharp either because they were moving around a little bit. 这些孩子也不是超级锋利,因为他们移动一点。
So it's time to remove some ghosts. 所以是时候删除一些鬼魂。
I can do that by clicking the Remove ghosts checkbox and when I do that, 我可以通过点击Remove鬼复选框,当我这样做,
Photoshop thinks for a bit, and then when it's done, it's done an okay job. Photoshop想了一点,然后当它结束的时候,做一个好工作。
I've lost some ghosting up here. Still got some down here. 我已经失去了一些重影。下面还有一些。
These kids are looking a little sharper. 这些孩子看起来有点尖锐。
There is something weird about the edges of them. That may just be zoom level. 有一些奇怪的东西的边缘。这可能只是缩放级别。
No, they are actually a little bit weird, and it shows me which image it has 不,他们实际上是有点奇怪,它向我展示了图像
chosen to be the primary image. 选择的主要形象。
The one that gets selected to have prominence over other background elements. 会选择在其他背景元素突出。
If I want, I can change that. I can just click on another one of these images, 如果我想要,我可以改变这一点。我可以点击这些图像,另一个
and it changes around. 和它的变化。
This one is working better. 这是更好的工作。
We look here at the one that it had chosen, I have got all these problems with 我们这里的一个选择,我有这些问题
his pants on both sides. 双方的裤子。
Here that clears up. 清除。
There's a little problem around his head, but I think I could clone that out very easily. 在他的头上有一个小问题,但我想我可以克隆出来很容易。
Let's look at the third one. 让我们来看看第三个。
Now this one is definitely not usable. 这绝对不是可用的。
I am going with this one. 我要用这个。
Now notice, as I'm changing around, it has no bearing on any other part of my HDR process. 我改变注意,它没有影响其他我HDR过程的一部分。
So it's not affecting my exposure at all. 所以它不是影响我的暴露。
It's not affecting the overall merge. 这并不影响整体合并。
So, now I could go in and adjust my exposure parameters as I like and do the 所以,现在我可以去调整曝光参数是我喜欢做的
rest of my HDR process. 我的HDR的过程。
Hit OK, go into Photoshop, and then I want to touch up the little bits that 点击确定,进入Photoshop,然后我想触摸小碎片
it didn't quite get. 它没有得到。
So that's ghost removal in the HDR Merge in Photoshop. 这是鬼在HDR合并在Photoshop中去除。
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