OpenCV - numpy array is 'bad argument type' for cv2.imread?

Question

I'm trying to read an image using cv2.imread(image). 'image' is a reference to an element of a list of numpy arrays. The console tells me that my argument - image - is of type , so it should work with cv2.imread(), but i get the following error: 'TypeError: bad argument type for built-in operation'.

What gives?

nidhi vaishnav · Accepted Answer · 2017-11-12 05:24:40Z

6

cv2.imread() is used to load an image. It takes the image path as a string argument. Which is the reason of this error.
- If you have created an image using numpy array, than no need to read it again, as cv2 accepts a numpy array as an image.
- For further information this might be useful: How to convert a python numpy array to an RGB image with Opencv 2.4?

answered Nov 12, 2017 at 5:24

nidhi vaishnav

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Rajath Bharadwaj · Accepted Answer · 2019-10-19 14:03:25Z

0

The image argument which you're passing must be a path to the actual image i.e

image = 'picture/image/trail.jpg'

cv2.imread() accepts the path where the actual image is located in your drive.
If you pass an numpy.ndarray which is already an array of image values, it gives the that TypeError: bad argument type for built-in operation

answered Oct 19, 2019 at 14:03

Rajath Bharadwaj

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