cannot running as demo

[Dragonwarri0r]

when i press b to get background and n to start,it can running a little time but gradually my hand integrate into backgroud(black).

[struggling-man]

I have the same situation. can you help me!

[lzane]

Have you try to set different parameters? This CV approach is easy light-affected.
It's a very old project so I nearly forget the detail.

Anyway, I will try it on my computer when I can reach one.

Good Luck~

[lzane]

Hey, I have noticed that the issue was caused by the new version of OpenCV api's modification.

Please checkout https://docs.opencv.org/3.4/d7/d7b/classcv_1_1BackgroundSubtractorMOG2.html#a682adde901148d85450435e6cc0de4a1

I wrote my code with OpenCV2, sorry for not testing the other contributor's pull request.

I will push a new version of code in a few minutes.

[lzane]

@Dragonwarri0r @struggling-man Plz pull the new version.

Hope it works for you guys. :)

[taojinglong]

When we use the latest version of opencv,line 96 in the new.py should be changed to this

• _, contours, hierarchy = cv2.findContours(thresh1, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)

• contours, hierarchy = cv2.findContours(thresh1, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)

[lzane]

@taojinglong you are right.

As the document show, that's because of the breaking change of the findContours api.

Since the project I write is in OpenCV 3, I Don't have plan to change it from the source code.

But I will find time to add the notice to the README

Doc:

• OpenCV 4
• OpenCV 3

[lzane]

Close this issue since it's solved.

[vedant10]

How to display the number of fingers in number. Eg 1 or 2 or 10