Gradient-Based Low-Light Image Enhancement
A low-light image enhancement is a highly demanded image processing technique, especially for consumer digital cameras and cameras on mobile phones. In this paper, a gradient-based low-light image enhancement algorithm is proposed. The key is to enhance the gradients of dark region, because the gradients are more sensitive for human visual system than absolute values. In addition, we involve the intensity-range constraints for the image integration. By using the intensity-range constraints, we can integrate the output image with enhanced gradients preserving the given gradient information while enforcing the intensity range of the output image within a certain intensity range. Experiments demonstrate that the proposed gradient-based low-light image enhancement can effectively enhance the low-light images.
Code (0)
등록된 구현이 없습니다.
Tasks
Image EnhancementLow-Light Image EnhancementSimilar Papers 제목 키워드 기반
Double Domain Guided Real-Time Low-Light Image Enhancement for Ultra-High-Definition Transportation Surveillance
Real-time transportation surveillance is an essential part of the intelligent transportation system (ITS). However, images captured under low-light conditions often suffer the poor visibility with types of degradation, s…
2k4kDecoderImage Enhancement+4Self-supervised Low Light Image Enhancement and Denoising
This paper proposes a self-supervised low light image enhancement method based on deep learning, which can improve the image contrast and reduce noise at the same time to avoid the blur caused by pre-/post-denoising. The…
DenoisingImage EnhancementLow-Light Image EnhancementBiEvLight: Bi-level Learning of Task-Aware Event Refinement for Low-Light Image Enhancement
Event cameras, with their high dynamic range, show great promise for Low-light Image Enhancement (LLIE). Existing works primarily focus on designing effective modal fusion strategies. However, a key challenge is the dual…
Low-Light Image EnhancementBilevel OptimizationBrightness Perceiving for Recursive Low-Light Image Enhancement
Due to the wide dynamic range in real low-light scenes, there will be large differences in the degree of contrast degradation and detail blurring of captured images, making it difficult for existing end-to-end methods to…
Image EnhancementLow-Light Image EnhancementPerceptual Multi-Exposure Fusion
As an ever-increasing demand for high dynamic range (HDR) scene shooting, multi-exposure image fusion (MEF) technology has abounded. In recent years, multi-scale exposure fusion approaches based on detail-enhancement hav…
Image EnhancementMulti-Exposure Image FusionSSIM