这是从Hullfish所著“视频的彩色校正”一书中摘录的3章内容 3 USING SCOPES AS CREATIVE TOOLS The next two important tools―after the video monitor itself― in analyzing a video image are a waveform monitor and vector- scope. There are three general categories of scopes available. The rst type is completely hardware based, with the waveform and vectorscope trace and graticule presented on a screen built into the scope (see Figure 3-2). The second type uses dedicated hard- ware to display the scopes on a separate computer display or as an overlay on your video monitor (see Figure 3-1). This is often referred to as a rasterizer or hybrid. The third type is soft- ware based using a video card, with the resulting image of the scope displayed in the software UI on your computer ……