Qt4.5 提供的qvfb,最新版本，没有鼠标乱动的问题,Qt4.5 provided qvfb, the latest version, there is no mouse or tamper with the problem

基于Qt的嵌入式防篡改图像数字水印系统.linux 操作系统下运行的-Qt-based embedded tamper-resistant image watermarking system. Linux operating system running under