基于FPGA的可变规模多格式YCbCr到RGB快速转换模块设计

Variable Size and Format YCbCr to RGB Fast Conversion Module Design Based on FPGA

文章介绍了YCbCr色彩空间和RGB色彩空间之间的转换的方法,实现了不同规模以及不同数据结构的YCbCr到RGB的快速硬件转换。采用数据重排列和数据分离等方法,不仅支持QCIF到HDTV多种分辨率的视频转换,而且支持YCbCr444、YCbCr422和YCbCr420等多种打包或平面YCbCr格式。本设计方案已用VerilogHDL语言实现,并在FPGA平台验证通过,转换后的RGB视频可直接输出到显示器显示,并能实现视频控制,存储,回放等功能。

This paper introduces the conversion method between YCbCr color space and RGB color space, realizes the fast hardware transformation of different sizes and data structures of YCbCr color space to RGB color space.The data rearrangement and data separation methods are used to not only support the video transformation with different resolution such as QCIF to HDTV multiple resolution video conversion,but also support several packaging or plane format, sucu as YCbCr444, YCbCr422 and YCbCr420 packaging or plane format.This design scheme has come true using VerilogHDL language, and verified on FPGA platform. After transformation, the RGB video can be directly displayed on the display, and the design scheme can implement video control, storage, playback and other functions.