Abstract: Nowadays, it is difficult for the researchers to remove noise from the original signal as well as to enhance the quality of the image. There have been various algorithms but each approach has its assumption, advantage and limitations. However light scattering and color change problems still exist in the underwater image. Scattering problem is arising due to the large suspended particles, which causes the degradation of the image. Color change occurs because different wavelengths are attenuated to different degrees in water, causing ambient underwater environments to be dominated by a bluish tone. This paper proposes a novel method based on multiscale product thresholding and weber’s law in order to denoise and enhance the underwater image quality.

Keywords: Noise, Weber’s law, Multiscale product thresholding etc.