图像融合的目的把来自多传感器的数据互补信息合并成一幅新的图像,以改善图像的质量。图像融合最简单的理解就是两个（或多个）图像间的相加运算。这一技术广泛应用于多频谱图像理解和医学图像处理等领域。主要分为空域和频域相加。-The purpose of image fusion from multiple sensor data to complement the information merged into a new image to improve image quality. The simplest understanding of image fusion are two (or more) add operations between images. This technology is widely used in multi-spectral image interpretation and medical image processing and other fields. Spatial and frequency domain is divided into the sum.