How To: Fix Green Screen Problems

How To: Fix Green Screen Problems
HDRip | MP4/AVC, ~5789 kb/s | 1280x720 | Duration: 00:44:33 | English: AAC, 192 kb/s (2 ch) | 1.86 GB
Genre: Video, Cinema
Rough and Discolored Edges
Green Screen work is complex, even under ideal circumstances, and working with footage that hasn't been lit or shot properly can be pretty tough. In this segment, we show you how to fix those rough and discolored edges that are often left after pulling an initial key.
Unwanted Green and Spill
When you're shooting footage next to a gigantic green wall, it's not unusual to have some of that green unintentionally fall on your subject. In this segment we show you how to remove the green spill using keylight, spill suppressor, and curves in Adobe's After Effects, Ultra Key and the three-way color corrector in Premiere Pro.
Subject Doesn't Match the Background
After the time-consuming process of pulling a good key is finally complete, placing your subject in the scene can sometimes seem like an afterthought. In this segment we talk about positioning your subject in the shot, color correcting your subject to match the background, creating a lightwrap to blend your subject into the background more naturally, and how to deal with mismatched lighting.
Source Footage has a Camera Move
"Green Screen shots with camera movement with the background and foreground in perfect sync helps sell the scene. In this segment, we show you how to track motion in your shot, sync your background with your footage, stabilize shaky footage, and manually keyframe motion. These techniques can help make your scene appear more real, and save otherwise unusable footage.
Multi-Layered Keys and Rotoscoping
Even the best green screen footage can present issues that can't be corrected with standard keying procedures. Whether it's a particular movement in the scene or rough lighting, sometimes you'll need to use alternative methods to isolate your subject from the background. In this segment we demonstrate multi-layered keys, and how to use masks to rotoscope your subject. These advanced methods and can help you get difficult green screen footage looking good.
Fixing Uneven Lighting and Unwanted Objects for Green Screen
We've all seen the tutorials that show you a one click process to pull a beautiful key. But many times, the lighting on the green screen shot you're working with isn't lit perfectly, and has objects in the shot that you don't want. In this segment, we show you how to remove unwanted objects from your footage, and key out a background that has uneven lighting. Knowing how to fix these issues is the starting point to pulling a great key, even when the footage presents a challenge.
如何:修复绿屏问题
HDRip|MP4/AVC，~ 5789kb/s|1280 x 720|持续时间:00:44:33|英语:AAC，192kb/s(2ch)|1.86GB
体裁:视频，看电影
粗糙和变色的边缘
绿色屏幕工作是复杂的即使在理想的情况下，和正常工作还没被点亮的画面或镜头可能相当棘手。在这段，我们向您展示如何修复拉初始密钥后，往往留那些粗糙和变色的边缘。
不需要的绿色和漏油事件
当你拍摄的镜头旁边一堵巨大的绿色时，它不是不寻常，有一些那绿色的无意中落在你的主题。在这部分我们将向您展示如何删除使用反光膜、泄漏抑制和Adobe 的后效应，超关键和三路色彩校正曲线在首映临绿色漏油事件。
主题不匹配背景
终于完成拉好关键的耗时过程后，将你的主题放在场景中有时就像一个事后的想法。在这一段我们谈谈定位你的主题中的一个镜头，纠正您的科目与背景相匹配的颜色创建lightwrap，你的主题更自然，融入背景，如何处理不匹配的照明。
源素材有摄像机移动
"绿色屏幕截图与摄像机运动的背景与前景完美同步有助于销售现场。在这段，我们向您展示如何跟踪你的射击运动，同步您与您的画面的背景，稳定摇摇欲坠的画面，和手动关键帧运动。这些技术可以帮助使你出现的场景更真实，否则为无法使用录像保存。
多层的密钥和转描机技术
甚至最好绿屏画面可以呈现标准的加密程序不能纠正的问题。无论它是一个特定的运动场景或粗糙的照明中，有时会需要使用替代方法来隔离你从背景的主题。在这一段我们展示多层次的钥匙，和如何使用面具吃透你的主题。这些先进的方法，可以帮助您获得困难的绿色屏幕画面看起来很好。
绿屏固定不均匀照明和不需要的对象
我们已经看到的教程，向您展示一次点击过程拉美丽的关键。但很多时候，你正在使用的镜头不完美，点燃，有绿色屏幕上照明对象镜头中你不想。在这段，我们向您展示如何从您的素材，删除不需要的对象和关键的背景，有不均匀的照明。了解如何修复这些问题是拉一把大钥匙，即使这段视频是一个挑战的起始点。