search

codebasics / py

Repository to store sample python programs for python learning
6.8k stars 16.75k forks source link

Error running face_cascade.detectMultiScale #79

Open syeds-git opened 3 years ago

syeds-git commented 3 years ago

Following code from this file in celebrity recognition project does not work:

face_cascade = cv2.CascadeClassifier('./opencv/haarcascades/haarcascade_frontalface_default.xml')
eye_cascade = cv2.CascadeClassifier('./opencv/haarcascades/haarcascade_eye.xml')

faces = face_cascade.detectMultiScale(gray, 1.3, 5)
faces

Error:

---------------------------------------------------------------------------

error                                     Traceback (most recent call last)

<ipython-input-9-17af89ccf870> in <module>()
      4 # eye_cascade = cv2.CascadeClassifier(cv2.data.haarcascades + 'haarcascade_eye.xml')
      5 
----> 6 faces = face_cascade.detectMultiScale(gray, 1.3, 5)
      7 faces

error: OpenCV(4.1.2) /io/opencv/modules/objdetect/src/cascadedetect.cpp:1689: error: (-215:Assertion failed) !empty() in function 'detectMultiScale'
Utkarsh1504 commented 3 years ago

firstly check-in your directory named as or similar to C:/Python/Lib/site-packages/cv2 XML files are present if they are, then instead of ./opencv/haarcascades/haarcascade_frontalface_default.xml use the same XML file name from your directory.

and if they are not present then firstly download that files in that directory. https://github.com/anaustinbeing/haar-cascade-files you can download it from here.