name 'MTCNN' is not defined in mtcnn in python

Question

I installed the mtcnn package, as can be seen:

# confirm mtcnn was installed correctly
import mtcnn
# print version
print(mtcnn.__version__)

Result:

0.0.9

Then I use the following:

# prepare model
model = MTCNN()
# detect face in the image
faces = model.detect_faces(pixels)
# extract details of the face
x1, y1, width, height = faces[0]['box']

Result:

1 # prepare model
----> 2 model = MTCNN()
      3 # detect face in the image
      4 faces = model.detect_faces(pixels)
      5 # extract details of the face

NameError: name 'MTCNN' is not defined

Nonprofessional

Answer 1

The Documentation is a good place to start: https://github.com/ipazc/mtcnn

from mtcnn.mtcnn import MTCNN
import cv2


model = MTCNN()

Hackbut

It works. But now I get additional error for the next line: NameError: name 'pixels' is not defined – Nonprofessional

Did you define Pixels anywhere beforehand? – Hackbut

Go to the documentation and follow the tutorial there. This file: github.com/ipazc/mtcnn/blob/master/example.py is the best example you are going to get on how to use that package. The code you have above seems like it doesn't really make any sense. You don't have pixels defined anywhere and you aren't importing MTCNN properly. I don't know what you are trying to do, but if you are having issues loading the package and are having trouble understanding the concept of assigning assigning values to variables, I think you might want to consider taking a python basics refresher course. – Hackbut

someone know how to set the margin? – Intinction

Answer 2

Sometimes what people do is name the file they are working on as mtcnn.py which causes this error. Changing the name of the file mtcnn.py to something else will work.

Gasholder