摘要
提出了一种基于数字图像处理技术实现自动聚焦的方法,给出了一种改进的灰度差分法作为图像聚焦是否清楚的评价函数。对图像质量进行比较,根据比较结果由单片机驱动镜头到达聚焦点,实现自动聚焦。
This paper introduces a method and hardware implementation of auto-focusing system based on digital image processing. Using a improved gray scale differential algorithm as evaluation function of focusing, different image quality on different lens positions are compared. According to the result of comparison the lens is drove to the position by single chip.
出处
《电子技术应用》
北大核心
2009年第1期28-29,33,共3页
Application of Electronic Technique
关键词
图像处理
自动聚焦
评价函数
image processing
auto-focusing
evaluation function
