Fuzzy based iterative matting technique for underwater images

• Main Authors: Benish Amin, M Mohsin Riaz, Abdul Ghafoor
• Format: Article
• Language: English
• Published: Wiley 2021-02-01
• Series: IET Image Processing
• Online Access: https://doi.org/10.1049/ipr2.12032

Abstract The paper presents an iterative matting technique for extraction of underwater objects from images. The technique adopts histogram division and stretching to obtain multiple images of different contrast levels that exhibit all image details. For each contrast image, alpha matte is produced and is further refined with every iteration. In the end, fuzzy weights are assigned to the alpha mattes obtained at different contrast levels that are combined using weighted average. The resultant alpha matte thus includes more accurate pixels from multiple alpha mattes and generates much refined matte image. The proposed technique is tested, visually and quantitatively, on a manual dataset containing 50 images. The less MSE shows that the proposed technique achieves noticeably higher accuracy as compared with contemporary image matting techniques.