Image Enhancement is the way toward enhancing the nature of the information Image with the goal that it would be effectively comprehended by watchers later on. Image Enhancement enhances the data substance of the Image and changes the visual effect of the Image on the spectator. Image Enhancement increases the highlights of Images. It highlights the Image highlights like edges, difference to construct show of photos more valuable for examination and study. Image Enhancement incorporates numerous activities; for example, differentiate stretching, clamor cutting, pseudo coloring, commotion separating and so on to enhance the perspective of Images. Dynamic scope of the picked highlights of Images is intensified by improvement so they can be recognized just. Acoustic Images for the most part experience the ill effects of the issue of poor color difference and poor perceivability. These issues happened because of the disseminating of light and refraction of light while entering from rarer to denser medium. Disseminating causes the obscuring of light and decreases the color contrast. These impacts of water on acoustic Images are just not due the nature water but rather additionally in light of the life forms and other material present in the water. Numerous strategies and techniques are built up by specialists to take care of the issue of acoustic Image improvement. In this paper distinctive acoustic Image upgrading strategies are looked into and contemplated. The general target is to investigate the inadequacies in prior systems.