Potential datasets:
Pistol https://sci2s.ugr.es/weapons-detection https://www.kaggle.com/issaisasank/guns-object-detection
Knive: http://kt.agh.edu.pl/matiolanski/KnivesImagesDatabase/
https://medium.com/@yoobi55/setting-up-heroku-server-with-node-js-express-eng-b0c8cc61a2a9
https://www.analyticsvidhya.com/blog/2019/04/introduction-image-segmentation-techniques-python/
https://www.pyimagesearch.com/2017/02/06/faster-video-file-fps-with-cv2-videocapture-and-opencv/
http://cs231n.github.io/classification/
https://medium.com/@kesari/how-ai-can-save-earths-biodiversity-94555d57dd28 https://medium.com/datadriveninvestor/upcoming-talks-on-how-ai-is-saving-our-planets-biodiversity-37f43e4bc624 https://blogs.microsoft.com/green/2017/01/30/protecting-biodiversity-with-artificial-intelligence/ https://blogs.nvidia.com/blog/2018/02/22/ai-for-biodiversity-informatics/ https://www.aaai.org/ojs/index.php/aimagazine/article/view/2431
https://www.research.ox.ac.uk/Article/2018-10-15-how-ai-can-help-us-save-the-planet