GREENSCREEN BACKGROUND REMOVER USING CV SYSTEM REPORT

A green screen is a backdrop against which footage is shot to later besuperimposed over a separately-filmed background in a visual effects processcalled “chroma keying.” It is also known as chroma key compositing, colorkeying,or simply keying..This term describes removing the green screen background in post-production using video editing software. When the green screen background has been keyed, it'll befully transparent..绿幕作为一种背景，常用于拍摄画面，随后在视觉效果处理过程中，通过“色键”技术将另一独立拍摄的背景叠加其上。亦称之为色键合成、颜色键或简称为键控。此术语涉及在后期制作中，利用视频编辑软件移除绿幕背景的操作。一旦绿幕背景完成键控，便将完全透明。