# Robust Secure Color Image Watermarking Using 4D Hyperchaotic System, DWT, HbD, and SVD Based on Improved FOA Algorithm

> Research article (Security and Communication Networks, 2021) · cited 25× · AI/ML

**Wikidata**: [openalex:W3133548300](https://www.wikidata.org/wiki/openalex:W3133548300)  
**Source**: https://4ort.xyz/entity/robust-secure-color-image-watermarking-using-4d-hyperchaotic-system-dwt-hbd-and-svd-based-on-improved-foa-algorithm