# A double-color image watermarking algorithm based on quaternion Schur decomposition

> Research article (Optik, 2022) · cited 19× · AI/ML

**Wikidata**: [openalex:W4294190721](https://www.wikidata.org/wiki/openalex:W4294190721)  
**Source**: https://4ort.xyz/entity/a-double-color-image-watermarking-algorithm-based-on-quaternion-schur-decomposition