BPFD-Net: enhanced dehazing model based on Pix2pix framework for single image

In this paper, we propose an image dehazing model based on the generative adversarial networks (GAN). The pix2pix framework is taken as the starting point in the proposed model. First, a UNet-like network is employed as the dehazing network in view of the high consistency of the image dehazing problem. In the proposed model, a shortcut module is proposed to effectively increase the nonlinear characteristics of the network, which is beneficial for subsequent processes of image generation and stabilizing the training process of the GAN network. Also, inspired by the face illumination processing model and the perceptual loss model, the quality vision loss strategy is designed to obtain a better visual quality of the dehazed image, based on peak signal-to-noise ratio (PSNR), structural similarity (SSIM) and perceptual losses. The experimental results on public datasets show that our network demonstrates the superiority over the compared models on indoor images. Also, the dehazed image by the proposed model shows better chromaticity and qualitative quality.