CODEWITHSUNDEEP
pythonopencv
solo
solo

Reputation: 783

No module named 'cv2'

After spending hours trying out others' suggestions, I still can't get OpenCV to work. I'd like to build a Python script that checks an image's/PDF's color at a certain area (it's for a printing company to verify that documents have a 0.5mm white border, as this is their machine's preferred format). That said, I'm planning on using OpenCV's color detection capabilities to set an RGB tolerance for a document's contours.

I've tried installing OpenCV with brew, brew install homebrew/science/, sudo pip, sudo pip3, pip and pip3, but I keep getting the following error:

ModuleNotFoundError: No module named 'cv2'

What confuses me most is that it seems I've successfully installed OpenCV when I enter pkg-config opencv --cflags in terminal:

-I/usr/local/Cellar/opencv/3.3.1_1/include/opencv -I/usr/local/Cellar/opencv/3.3.1_1/include

Is the wrapper no longer supporter for Python 3.6? If so, where could I get a similar package?

Here's what I'm working with so far:

import cv2
import numpy as np

img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)

contours,_ = cv2.findContours(img, cv2.RETR_LIST, cv2.cv.CV_CHAIN_APPROX_NONE)

lst_intensites = [(255, 255, 255)]

for i in range(len(contours)):
    cimg = np.zeros_like(img)
    cv2.drawContours(cimg, contours, i, color=255, thickness=-1)

    pts = np.where(cimg == 255)
    lst_intensities.append(img[pts[0], pts[1]])

Upvotes: 20

Views: 90782

Answers (5)

Zeeshan Khan Suri
Zeeshan Khan Suri

Reputation: 476

If you do not have root permission on Linux and want to still use pip, a headless installation would work (also on Windows and Mac)

pip install opencv-python-headless

Upvotes: 0

張正軒
張正軒

Reputation: 119

On Ubuntu, you can install the opencv depends like:

sudo apt-get install python-opencv

or install it with pip ( python package management tools ):

pip install opencv-python

Refer to similar questions OpenCV - cannot find module cv2.

Upvotes: 6

Gowthaman
Gowthaman

Reputation: 157

For windows, this will work

pip install --upgrade pip setuptools wheel

then install opencv,

pip install opencv-python

Upvotes: 0

DingDong
DingDong

Reputation: 271

On Windows, you can install with pip:

pip install opencv-python

Upvotes: 27

sonu_chauhan
sonu_chauhan

Reputation: 335

Well I was also facing the same issue today but I finally installed it in Anaconda and it's working fine:

conda install -c conda-forge opencv
conda install -c conda-forge/label/broken opencv

source:Opencv Installation

Happy Coding:)

Upvotes: 15

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