一些开源数据集

http://web.inf.ufpr.br/vri/databases/
Brazilian Forensic Letter (V1.0 – 2008)
Authorship Attribution Database (V1.0 – 2011)
Forest Species Recognition (Macroscopic Images) (V2.0 2012)
Forest Species Recognition (Microscopic Images) (V1.0 – 2011)
Touching Digits (V2.0 – 2011)
(V3.0 – 2017 2- and 3-digit strings)
Brazilian Sign Language (LIBRAS) Hand Configuration (V1.0 – 2013)
PKLot – A robust dataset for parking lot classification (V2.0 2014)
IORB-modifyed database (V1.0 2014)
SignWriting database (V1.0 2015)
Histopathological Breast Cancer Images (V1.0 2015)
Seeds Images database (V1.0 2015)
Charcoal Database (V1.0 to be released soon)
UFPR-ALPR Dataset (License Plates) (V1.0 – 2018)
Iris Location – Annotations (V1.0 – 2018)
LC Data