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？
The window and door frames are in a black coloured metal.
门窗框架是黑色的金属材质。
A set of lace square frames in art deco style, white drawing on black background.
一组花边方形框架在装饰艺术风格，白色在黑色的背景上绘制。
A set of lace square frames in art deco style, white drawing on black background.
一组花边方形框架在装饰艺术风格，白色在黑色的背景上绘制。
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