# Applying the chi-square transformation and automatic secant thresholding to Landsat imagery as unsupervised change detection methods

> Research article (Journal of Applied Remote Sensing, 2017) · cited 24× · AI/ML

**Wikidata**: [openalex:W2584157278](https://www.wikidata.org/wiki/openalex:W2584157278)  
**Source**: https://4ort.xyz/entity/applying-the-chi-square-transformation-and-automatic-secant-thresholding-to-landsat-imagery-as-unsupervised-change-detec