It's displaying your image as stored, in hex format. Presumably it's your image data which is wrong - the BLOB is just a binary object, it has no intelligence to the format.
You may find that it is easier to read the image from a file using the syntax from this thread: Unstructured Data in HANA | SAP HANA
John
P.S. If you want some traction around FKOM, you may want to ask an internal audience :-)