# An optimum multi-level image thresholding segmentation using non-local means 2D histogram and exponential Kbest gravitational search algorithm

> Research article (Engineering Applications of Artificial Intelligence, 2018) · cited 169× · AI/ML

**Wikidata**: [openalex:W2790510783](https://www.wikidata.org/wiki/openalex:W2790510783)  
**Source**: https://4ort.xyz/entity/an-optimum-multi-level-image-thresholding-segmentation-using-non-local-means-2d-histogram-and-exponential-kbest-gravitat