Unable to access image directory on Colab platform

After importing the zip files into the designated directories, I attempted to visualize the images using a random number, but encountered the following error message:

Error: OpenCV(4.1.2) /io/opencv/modules/imgproc/src/color.cpp:182: Error: (-215:Assertion failed) !_src.empty() in function 'cvtColor'

This is the code snippet that triggered the error:

img = imread_collection(os.path.join(self.img_dir, self.img_IDs[i]))
#img = cv2.imread()
img = cv2.cvtColor(np.float32(img), cv2.COLOR_BGR2RGB)
pythonopencvgoogle-colaboratoryscikit-image

Answer №1

The issue arises from failure to access the image(s).

  1. In order to read an image, you must include the following code:
img = cv2.imread('./path to image/image.jpg')
img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
  1. Does your function have the capability to read images similar to the standard opencv imread module? Can you provide insight into how this function works?
imread_collection(os.path.join(self.img_dir, self.img_IDs[i]))
  1. You can verify if the folder name is error-free by printing os.path result:
print( os.path.join(self.img_dir, self.img_IDs[i]) )
  1. Remember to mount the drive:
from google.colab import drive
drive.mount('/content/drive')

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