• ANANTHU V
• ANANDU R
• ASHWIN SHAJI
• SHARUN KOSHY THARAKAN

Image enhancement is the major process in the image processing techniques. Image enhancement would increase the sharpness and intensity of the underwater images. By increasing the factors of the pixels, the object can be visible clearly in the underwater images. Photograph fusion is the mixture of two or extra unique graphics to kind new snapshot through making use of a detailed algorithm. Photograph fusion is the approach of producing a single fused snapshot utilizing a set of input pics which are assumed to be registered .Enter image would be multi-sensor, multimodal ,multifocal or multi-temporal. This paper grants a literature overview on one of the most photo fusion procedures and photograph enhancement systems. The input image is first pre-processed. Then HWD transform is applied on it for sharpening the image. The low frequency background is removed using a high pass filter .Image histograms are then mapped based on the intermediate color channel to reduce the gap between the inferior and dominant color channels. Then Wavelet fusion is applied followed by adaptive local histogram specification process. The resultant images processed through the proposed approach could be further used for detection and recognition to extract more valuable information. Image Enhancement is to procedure the input image in any such means that the output image is more compatible for interpretation by the humans as well as by way of machines.

"UNDERWATER IMAGE ENHANCEMENT USING IMAGE PROCESSING TECHNIQUE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 5, page no.c597-c598, May-2024, Available :http://www.jetir.org/papers/JETIR2405274.pdf

"UNDERWATER IMAGE ENHANCEMENT USING IMAGE PROCESSING TECHNIQUE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 5, page no. ppc597-c598, May-2024, Available at : http://www.jetir.org/papers/JETIR2405274.pdf