UCM	Unsupervised color correction method
UDCP	Underwater dark channel prior
UGAN	Underwater generative adversarial network
FunieGAN	Fully convolutional GAN for real-time underwater image enhancement
UWGAN	Underwater GAN for generating realistic underwater images.
Unet3	Unet with three down-sampling
Unet4	Unet with four down-sampling
RD-Unet	Add residual dense blocks based on Unet4
RD_RP-Unet	Add residual path blocks based on RD-Unet
DS_RD_Net	Add a deep supervision based on RD_RP-Unet
MSE	Mean squared error
RMSE	Root-mean-squared error
PSNR	Peak signal to noise ratio
SSIM	Structural similarity index measure
UCIQE	Underwater color image quality evaluation
UIQM	Underwater image quality measurement