# Quaternion Discrete Fourier Transform-Based Color Image Watermarking Method Using Quaternion QR Decomposition

> Research article (IEEE Access, 2020) · cited 43× · AI/ML

**Wikidata**: [openalex:W3016575267](https://www.wikidata.org/wiki/openalex:W3016575267)  
**Source**: https://4ort.xyz/entity/quaternion-discrete-fourier-transform-based-color-image-watermarking-method-using-quaternion-qr-decomposition