flag to load float 32-bit image

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Hi,

I am trying to read a float 32-bit image in c++. For that, i use the following code :

cv::Mat Dark_Image = cv::imread("/home/jetson/Documents/flat_fiel_correction/Dark_image.tif", cv::IMREAD_ANYDEPTH);

The image is loaded in 8-bit, and not in 32-bits .. The flag doesn't work. Any idea ..?

Thank you !