# Combining polar harmonic transforms and 2D compound chaotic map for distinguishable and robust color image zero-watermarking algorithm

> Research article (Journal of Visual Communication and Image Representation, 2020) · cited 60× · AI/ML

**Wikidata**: [openalex:W3013246088](https://www.wikidata.org/wiki/openalex:W3013246088)  
**Source**: https://4ort.xyz/entity/combining-polar-harmonic-transforms-and-2d-compound-chaotic-map-for-distinguishable-and-robust-color-image-zero-watermar