# A Novel Attack on Monochrome and Greyscale Devanagari CAPTCHAs

> Research article (ACM Transactions on Asian and Low-Resource Language Information Processing, 2021) · cited 22× · AI/ML

**Wikidata**: [openalex:W3164893804](https://www.wikidata.org/wiki/openalex:W3164893804)  
**Source**: https://4ort.xyz/entity/a-novel-attack-on-monochrome-and-greyscale-devanagari-captchas