# Unsupervised quaternion model for blind colour image quality assessment

> Research article (Signal Processing, 2020) · cited 12× · AI/ML

**Wikidata**: [openalex:W3040544497](https://www.wikidata.org/wiki/openalex:W3040544497)  
**Source**: https://4ort.xyz/entity/unsupervised-quaternion-model-for-blind-colour-image-quality-assessment