How to train more accurate Haar Cascades?

asked 2020-04-28 17:41:28 -0500

I'm developing an app which detects plagues on the agave, and also detects some fungus in microscopic view, such as Fusarium Oxysporum. So, I want to detect small objects as you see (insects and fungus in microscopic view), and I would like to read some advice.

I've created one haar cascade to detect Fusarium Oxysporum, following Sentdex tutorial: but I didn't get good results... it sometimes detects objects in the background, or simply doesn't recognize the object which is supossed to detect.

1.- I've trained it with 17 stages, and with 4000 positive images, and 2000 negative, take into consideration that I only had 18 original positive images, so I created 4000 using create_samples, and I resize negative images to 100x100, and positives to 50x50.

2.-At the moment I used create_samples, I put -w 20 -h 20, and I'm not sure if I should've use higher values

Thank you all :) sorry if some parts are not understandable, I'm still learning English

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but I didn't get good results..

that's somehow expected. haar cascades are for rigid things only, probably the wrong tool for your job. synthesizing thousands of images from a few only never works here

following Sentdex tutorial:

ohh, that's that shitpost, where he can't detect his own watch in the end ? you should have been warned ....

berak gravatar imageberak ( 2020-04-29 00:50:04 -0500 )edit

btw, can you add an example image to your question ?

berak gravatar imageberak ( 2020-04-29 01:02:57 -0500 )edit