Sorry - i didn't see your response. Here's my previous edit.
--update
I take it back. It mostly works but on SRGB 256 color 8-bpp it's returning 48-bpp because for some reason it thinks the images are RGB and 16-bpc. See this image as an example https://app.box.com/s/kw3j7mvch7m7llhtlbe9xyif507mv17p
This is what tiffinfo thinks of the image.
--update
I take it back. It mostly works but on SRGB 256 color 8-bpp it's returning 48-bpp because for some reason it thinks the images are RGB and 16-bpc. See this image as an example https://app.box.com/s/kw3j7mvch7m7llhtlbe9xyif507mv17p
This is what tiffinfo thinks of the image.
tiffinfo del-081314_DFW_P1_TEX_SR_v1_I4.tif
TIFF Directory at offset 0x34 (52)
Image Width: 94 Image Length: 10
Resolution: 300, 300 pixels/inch
Bits/Sample: 8
Compression Scheme: AdobeDeflate
Photometric Interpretation: palette color (RGB from colormap)
Samples/Pixel: 1
Rows/Strip: 10
Planar Configuration: single image plane
Color Map: (present)