Face enhancement and hallucination in the wild

Recovering facial details from dark images has attracted increasing attention due to its potential in various applications such as video surveillance. We propose the first approach to detect and enhance human faces in extremely low-light images. We at first propose an attention module (AM) to detect the facial skin which is relatively robust to the low-quality condition. The AM further locates the landmarks as the prior knowledge to facilitate the reconstruction. Then, with the detected face position, our face hallucination module (FHM) could focus on enhancing the resolution and quality of the face. Moreover, we also introduce a low-light enhancement module to enhance the global image to merge with the hallucinated face from FHM for the final images. Extensive experiments show our method is quantitatively and qualitatively superior to the state-of-the-art in terms of enhancement quality and face hallucination.