Error While Using eye cascade XML files

#1

eye_cascade = cv2.CascadeClassifier(cv2.data.haarcascades + “F:\Python Udemy\Coding Blocks\Coding Practice\KNN\Assignment\third-party\frontalEyes35x16.xml”)

mustache_cascade = cv2.CascadeClassifier(cv2.data.haarcascades + “F:\Python Udemy\Coding Blocks\Coding Practice\KNN\Assignment\third-party\Nose18x15.xml”)

eye_1=mustache_cascade.detectMultiScale(jamie,1.3,6)

i have searched on stack overflow but didn’t find appropriate answer.

OpenCV(4.2.0) C:\projects\opencv-python\opencv\modules\objdetect\src\cascadedetect.cpp:1689: error: (-215:Assertion failed) !empty() in function ‘cv::CascadeClassifier::detectMultiScale’

#2

This error arises as later versions of opencv doesn’t support this formal, uninstall opencv first
and than install any older version using following command,
!pip install opencv-python==4.0.1.23

After this your code will run fine.

Hope this cleared your doubt. :blush:

#3

Just write this command in terminal, older installed version will be automatically removed,

pip install opencv-python==4.0.1.23.

#4

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#5

Hi, This is regarding Relu ,

#6

Hi team, As it is earlier said that back propagation will only work if & only if our activation function is differentiable , but Relu is not diffrentiable at 0 .

#7

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