# A blind color image watermarking algorithm using the energy concentration principle of Hadamard matrix

> Research article (Optik, 2021) · cited 22× · AI/ML

**Wikidata**: [openalex:W3209030078](https://www.wikidata.org/wiki/openalex:W3209030078)  
**Source**: https://4ort.xyz/entity/a-blind-color-image-watermarking-algorithm-using-the-energy-concentration-principle-of-hadamard-matrix