本文论述了嵌入式系统相关理论、嵌入式Linux 的基本概念, 主要阐述了采用嵌入式Linux 进行视频图像数据的捕获、存储、显示等。采用的关键技术包括V4L、fr a mebuffer、数字图像格式变换等, 提出了图像数据格式的变换方法。同时阐述了具体的实现方法。-This article discusses the theory of embedded systems, embedded Linux basic concepts, mainly on the use of embedded Linux for video image data capture, storage, display and so on. The use of key technologies including V4L, fr a mebuffer, such as digital image format transformation, the image data format transformation method. At the same time on a specific method.