DropLeaf - Spraying Meter™ automatically measures the efficacy of spraying methods and nozzles using images of water-sensitive papers (WSP) either captured from a smartphone or loaded from the photo gallery.

If you are using our application, please cite us:
DropLeaf: A precision farming smartphone tool for real-time quantification of pesticide application coverage. Computers and Electronics in Agriculture. Volume 180, 105906, January 2021.
Full paper: http://brunobrandoli.com/assets/papers/2021DROPLEAF.pdf

and

A smartphone application to measure the quality of pest control spraying machines via image analysis. SAC '18 Pages 956-963. Proceedings of the 33rd Annual ACM Symposium on Applied Computing. 2018.
Full paper: http://dropleaf.icmc.usp.br/paper/2017DROPLEAF.pdf

Key-features:
• Automatic and accurate quantification of the spray cards.
• Suitable for several kinds of water-sensitive papers.
• A 4-language interface available for Android.
• Useful on the adjustment and on the assessment of pesticide spraying machines.

DropLeaf - Spraying Meter™ was developed by researchers from the Dalhousie University, University of São Paulo, in collaboration with researchers of the Federal University of Mato Grosso do Sul.

Contact:
If you have any questions or suggestions, please send us an email at upvisiongroup@gmail.com or to Prof. Bruno Brandoli at brunobrandoli@gmail.com. Your feedback is very important to improving our app. We are open to collaboration.