Your comment about TIFF inspired me to google that format. I found a warning that software to decode this format may require a license. Did you check out the built-in function 'vec'? The bits in your string are probably not in the order that you expect. You should be able to fix this with unpack. (pack/unpack are confusing, and working code probably cannot be ported to other systems).
Bill

In reply to Re: I've muddled my bit and byte formats. by BillKSmith
in thread I've muddled my bit and byte formats. by murrayn

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