# A Novel Zero-Watermarking Scheme Based on Variable Parameter Chaotic Mapping in NSPD-DCT Domain

> Research article (IEEE Access, 2020) · cited 42× · AI/ML

**Wikidata**: [openalex:W3037806832](https://www.wikidata.org/wiki/openalex:W3037806832)  
**Source**: https://4ort.xyz/entity/a-novel-zero-watermarking-scheme-based-on-variable-parameter-chaotic-mapping-in-nspd-dct-domain