Posts by Fer Pimenta • 79 points
4 posts
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4
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answer1733
viewsA: error: (-215:Assertion failed) ! Empty() in Function 'detectMultiScale'
The mistake was on that line: classificador = cv2.CascadeClassifier('\home\linux\Documentos\deteccao\haarcascade_frontalface_default.xml') The correct bar to use: classificador =…
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votes1
answer1733
viewsQ: error: (-215:Assertion failed) ! Empty() in Function 'detectMultiScale'
I’m totally layy on linux and I’m trying to use opencv version 3.4.2 with python 3.5.2 on linux Mint to run an example facial detection code. Below the code: import numpy as np import cv2…
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votes1
answer904
viewsQ: Enable button event by entering an Edit
I created a "register" screen where the user informs the name/nickname and where there is a Continue button that goes to another screen. I would like this new screen to open when the user presses…
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answer37
viewsQ: Problem with checkbox and Onitemclick event
I created a list with checkbox disabled, where the goal is that when the user clicks on an item in the list, a new screen is opened and the check is marked, but I can’t make the check be marked…