# Difference angle quantization index modulation scheme for image watermarking

> Research article (Signal Processing Image Communication, 2015) · cited 22× · AI/ML

**Wikidata**: [openalex:W2022616096](https://www.wikidata.org/wiki/openalex:W2022616096)  
**Source**: https://4ort.xyz/entity/difference-angle-quantization-index-modulation-scheme-for-image-watermarking