# Robust Color Image Hashing Using Quaternion Polar Complex Exponential Transform for Image Authentication

> Research article (Circuits Systems and Signal Processing, 2018) · cited 27× · AI/ML

**Wikidata**: [openalex:W2801843947](https://www.wikidata.org/wiki/openalex:W2801843947)  
**Source**: https://4ort.xyz/entity/robust-color-image-hashing-using-quaternion-polar-complex-exponential-transform-for-image-authentication