摘要
提出了一种基于NiosII的红外图像灰度变换设计方案,并详细介绍了红外图像灰度变换算法以及系统硬、软件设计以及实现方法。针对红外图像的特点,提出了一种基于平台直方图均衡的红外图像灰度变换算法,并在CycloneII系列FPGA上实现了该算法,其处理单元采用嵌入式处理器软核NiosII。实验结果表明,该系统能很好地实现红外图形灰度变换,并在一定程度上抑制了背景,提升了目标。
A design scheme of infrared image gray level transformation system based on Nios Ⅱ is introduced. The algorithm of infrared image gray level transformation, the design and implementation of hardware and software system are introduced. A gray level transformation algorithm for infrared images is presented based on plateau histogram equalization. The algorithm is implemented in CycloneⅡ series FPGA, and the operation unit adopted Nios II embedded processor. The experiment results show that the system can realize infrared image gray level transformation, suppress background and upgrade target in a certain extent.
出处
《光学与光电技术》
2007年第2期45-47,51,共4页
Optics & Optoelectronic Technology
关键词
灰度变换
平台直方图均衡
红外图像
gray level transformation
plateau equalization
infrared image
