• Kapil joshi
• Himanshu Gupta
• Sumita Lamba

Image fusion has been a very popular research area for researchers. Image fusion is a technique for merging the information or data from two or more different source images that generates useful information for human visual perception. Fused images are more informative then original images. It’s a very challenging task to focus on the particular area of unclear defocused images and to remove the blurring problem from that. In this paper, all popular terminologies and techniques are discussed to understand the basic concept of image fusion and looks into various techniques for future research. this paper is divided into 9 sections the first part is introduction that talks about what is image fusion and why it is important in the second part process of image fusion is discussed then in the third section pre-processing of image fusion is discussed in the forth section image fusion types are discussed then in the fifth section various application of image fusion are discussed in the sixth section image fusion is classified into various categories and in the seventh section various methods for image fusion are discussed the eight section is conclusion and future scope and finally in the ninth section references are given.

Image fusion, Multi-focus image fusion, spatial domain, Transform domain

"An Overview on Image Fusion Concept", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 9, page no.873-879, September-2018, Available :http://www.jetir.org/papers/JETIR1809267.pdf

"An Overview on Image Fusion Concept", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 9, page no. pp873-879, September-2018, Available at : http://www.jetir.org/papers/JETIR1809267.pdf