4D LUT: Learnable Context-Aware 4D Lookup Table for Image Enhancement
4D LUT: Learnable Context-Aware 4D Lookup Table for Image Enhancement
Image enhancement aims at improving the aesthetic visual quality of photos by retouching the color and tone, and is an essential technology for professional digital photography. Recent years deep learning-based image enhancement algorithms have achieved promising performance and attracted increasing popularity. However, typical efforts attempt to construct a uniform enhancer …