# Global sparse gradient guided variational Retinex model for image enhancement

> Research article (Signal Processing Image Communication, 2017) · cited 20× · AI/ML

**Wikidata**: [openalex:W2747769239](https://www.wikidata.org/wiki/openalex:W2747769239)  
**Source**: https://4ort.xyz/entity/global-sparse-gradient-guided-variational-retinex-model-for-image-enhancement