抖动，是指当在低分辨率下看较高分辨率的图像、低色模式下显示更多色模式（如在VGA16色图形模式下显示256色及全彩色图像）时出现的颜色和图像变形的问题。-Jitter, when the low-resolution look at the images higher resolution, low-color mode to show more color mode (such as color graphics mode VGA16 display 256 colors and full-color images) when the color and image distortion problems.