Why are the videos or single frames I capture always white or black?

为什么我抓取到的单祯图像总是白色的或黑色的？

youdao

Internally recorded demo files use time stamps called ticks to mark single frames within the playback.

内部纪录DEMO档案使用时间戳记来标记一个在播放中的游戏框架。

youdao

Sometimes gags work best when there's a limit to the number of frames you can use, like the single frames or those conventional four-frame comic strips.

有时候在漫画工作中，单元格最好是被规定了固定的数量，就好像单格漫画或是那些常见的四个漫画。

youdao

The app takes a number of successive video frames and processes them into a single, static image that improves on the original in a variety of ways.

ECONOMIST: Monitor

But the focal point of the room is a tall, single-paned modernist window above the bar that perfectly frames the changing leaves of a tree outside, and the dishes that give at least the impression of lightness are truly memorable.

NEWYORKER: Allswell

The single-pane windows and the shrunken doors shivered in their frames.

NEWYORKER: Idols