16 bit tiffs are read but with issues

[robmarkcole]

Most geospatial imagery will be provided as a tif, typically a 16 bit geotiff. These files can be read and process by sahi but there may be issues, which I aggregate here. The first I have noticed is the geotiff will be cast to 8bit using numpy:

image_sk = skimage.io.imread(image).astype(np.uint8)

This will result in colour errors when the RGB image is written