基于频域高斯函数的多光谱全数字对焦算法

Mlti-spectral Full Digital Autofocus Algorithm Base on Frequency Domain Gaussian Function

针对多光谱图像的性质,构建了一种多光谱图像的细节增强滤波器.通过主客观的评价表明,该滤波器作用于多光谱图像之后,在保证图像灰度分布基本不变的前提下,可以增强离焦图像的细节、降低高频噪声.

Multi-spectral imaging system with multichannel imaging,and optical path differently to different wavelengths of monochromatic light refractive index,and lead to the differences between the focussing,affect the quality of the collected images.Based on the nature of the multi-spectral image,build a multi-spectral image to details enhance filter.Through subjective and objective evaluation shows that the filter ACTS on the multi-spectral image,on the premise of guarantee the image grayscale distribution basically remain unchanged,can enhance from coke image details,to reduce the high frequency noise.