Knives Images Database

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The database containes images with resolution 100x100 pixels:
- 9340 negative examples,
- 3559 positive examples.

The database is free to use in any scientific work.
In case of commercial use please contact:

If you use our database please cite at least one from following papers (both published under Open Access policy):
CCTV object detection with fuzzy classification and image enhancement, Andrzej MATIOLAŃSKI, Aleksandra MAKSIMOWA, Andrzej DZIECH, Multimedia Tools and Applications, 2015, pages 1-16, ISSN 1573-7721, doi:10.1007/s11042-015-2697-z
Available at:
Automated Detection of Firearms and Knives in a CCTV Image, Michał Grega, Andrzej MATIOLAŃSKI, Piotr Guzik, Mikołaj Leszczuk, Sensors, ISSN 1424-8220. — 2016 vol. 16 iss. 1 art. no. 47, s. 1–16.
Available at: