Abstract: Image fusion is a process to merge the information from two or more images to obtain a resultant image of higher quality and information. There are numerous techniques available to fuse the images. These techniques are categorized into spatial domain, transform domain and statistical based methods. This paper contains the review of some of the techniques under each type and draws a conclusion from their performance analysis.
Keywords: Image Fusion, Types of image fusion, Entropy(En), Peak Signal to Noise Ratio(PSNR)