sam.generate(): Error with uploaded images

[aloboa]

Environment Information

• samgeo version: (colab)
• Python version: 3 (colab)
• Operating System: colab

Description

Tried to run automatic_mask_generator.ipynb with a tiny (123 224 3) GTiff image uploaded to colab.
sam.generate produces an error.

What I Did

image = '/content/mini.tif'
sam.generate(image, output="masks.tif", foreground=True, unique=True)
---------------------------------------------------------------------------

error                                     Traceback (most recent call last)

[<ipython-input-44-625ba53ba81a>](https://localhost:8080/#) in <cell line: 1>()
----> 1 sam.generate(image, output="masks.tif", foreground=True, unique=True)

[/usr/local/lib/python3.10/dist-packages/samgeo/samgeo.py](https://localhost:8080/#) in generate(self, source, output, foreground, batch, erosion_kernel, mask_multiplier, unique, **kwargs)
    197 
    198             image = cv2.imread(source)
--> 199             image = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)
    200         elif isinstance(source, np.ndarray):
    201             image = source

error: OpenCV(4.8.0) /io/opencv/modules/imgproc/src/color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cvtColor'

test image: https://www.dropbox.com/scl/fi/8f8c6j9b7h6vk0b62qmx1/mini.tif?rlkey=swfjtay3s5rzw2k0chizgdcm7&dl=0

[giswqs]

It only supports 8-bit integer type. Your image is floating type.

[aloboa]

It only supports 8-bit integer type. Your image is floating type.

I confirm it works with the same image as INT1U. Thanks.