基于TWAIN协议扫描仪接口参数的自动调整  

Automatic adjustment of parameters of scanner’s interface oriented on TWAIN protocol

作　　者：王文姣[1] 田学东[1] 

机构地区：[1]河北大学数学与计算机学院,河北保定071002

出　　处：《计算机工程与设计》2008年第22期5894-5897,共4页Computer Engineering and Design

基　　金：国家自然科学基金项目(60772073)

摘　　要：介绍了图像输入设备和应用程序之间的标准通讯协议TWAIN的基本原理和结构,说明了在图片输入过程中TWAIN相关软件的工作流程与状态。应用此标准,在VC++6.0环境下实现数据传输过程,它可以方便地在应用程序中加入图像获取功能。目前,在此方面只实现了简单的输入功能,这里通过对扫描参数进行适当的自动调整,来减少因扫描参数设置不当而影响扫描图片质量的问题。实验结果表明,引入灰度直方图方法后极大地提高了扫描图片的清晰度。The basic principle and structure of the standard communication protocol TWAIN between image input device and application is introduced. Furthermore, the work flow and condition of the correlation software in image input process is explained. Data transmission process is completed by utilizing this standard under VC＋＋6.0 environment which may conveniently adds the image capturing function in the application program. Nowadays, as for the function of the pure input is come true in this field, the suitable automatic adjustment is applied in view of scanning parameter and decrease influencing the quality of the pictures in that the setting of the scanning parameter isn＇t appropriate. The experiment indicates that the clarity of the pictures is improved by introducing the gray diagram.

关 键 词：TWAIN协议 数据传输 图像获取 扫描参数 灰度直方图 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]