# Retinal Image Enhancement Using Curvelet Based Sigmoid Mapping of Histogram Equalization

> Research article (Journal of Physics Conference Series, 2021) · cited 10× · AI/ML

**Wikidata**: [openalex:W3186320956](https://www.wikidata.org/wiki/openalex:W3186320956)  
**Source**: https://4ort.xyz/entity/retinal-image-enhancement-using-curvelet-based-sigmoid-mapping-of-histogram-equalization