基于Visual C++.NET的照度信号串口通信

本文以PC机与单片机串口通信实现数据采集为背景。介绍了在VC ．NET环境下串口通信的实现以及上位PC机与下住单片机串行通信协议以及数据块的发送与接受过程，同时给出了部分程序代码。     

Color Reproduction on CRT Displays via BP Neural Networks Under Office Environment

A CRT characterization method based on color appearance matching is presented. A matching between Munsell color chips and CRT charts was obtained in vision perceiver in typical office environment and viewing condition by recommending. And neural networks were utilized to accomplish the color space conversion from CIE standard color space to CRT device color space. The neural networks related the color space conversion and color reproduction of soft/hard-copy directly to the influence of the illuminance and viewing condition in vision perceiver. The average color difference of training samples is 3.06 and that of testing samples is 5.17. The experiment results indicated that the neural networks can satisfy the requirements for the color appearance of hard-copy reproduction in CRT.